IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
Study of Velocity and Pressure Distribution Characteristics Inside Of Catalyt...ijceronline
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
Study of Velocity and Pressure Distribution Characteristics Inside Of Catalyt...ijceronline
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
Effect of Geometry on Variation of Heat Flux and Drag for Launch Vehicle -- Z...Abhishek Jain
Above Research Paper can be downloaded from www.zeusnumerix.com
The research paper aims at studying the variation of the geometry of the launch vehicle nose and its effect on heat flux. CFDExpert software is first validated on NASA's hyperballistic model and then used on proposed geometries. Various nose radius and blending shapes are studied for effect on drag and heat flux. Cone ogive shape is found to decrease heat flux with an insignificant increase in drag. Authors Abhishek Jain (Zeus Numerix), Rohan Kedar and Prof V Kalamkar (SPCOE).
The sun is the source of solar energy and the solar energy is pollution free and available in ample amount which can be used for heating, electricity generation and coking purpose.The position of sun constantly varies so its intensity also varies which affect the heat quantity incident upon the system. The aim of present work is overcome this difficultly using wax type phase change material which behaves like heat storage medium as position of sun changes. This phase change material based solar water heater is fabricated and thermal performance evaluation can be carried out using K type thermocouple.
Heat Transfer in Porous Media With Slurry of Phase Change MaterialsCSCJournals
3-D laminar model of a rectangular porous channel with high thermal conductivity and constant wall heat flux is chosen to investigate the enhancement of heat transfer when used in conjunction with the phase change material slurry. Numerical simulations for various wall heat fluxes and inlet velocities are carried out. The slurry consist of microencapsulated octadecane and water. The heat transfer coefficient of the porous channel with pure water and with micro-encapsulated phase change material are calculated and compared. The effect of porosity and permeability of the porous medium on the heat transfer coefficient while using a slurry of phase change material are studied. The results show that the heat transfer coefficient of the porous channel can improve by introducing phase change material slurry, but only under certain heat fluxes, inlet velocities, and porous media properties.
H-infinity controller with graphical LMI region profile for liquid slosh supp...TELKOMNIKA JOURNAL
This paper presents a H-infinity synthesis with pole clustering based on LMI region schemes for
liquid slosh control. Using LMI approach, the regional pole placement known as LMI region combined with
design objective in H-infinity controller guarantee a fast input tracking capability and very minimal liquid
slosh. A graphical profile of the transient response of liquid slosh suppression system with respect to pole
placement is very useful in giving more flexibility to the researcher in choosing a specific LMI region. With
the purpose to confirm the design of control scheme, a liquid slosh model is considered to represent
the lateral slosh movement. Supremacy of the proposed approach is shown by comparing the results with
hybrid model-free fuzzy-PID controller with derivative filter. The performance of the control schemes is
examined in terms of time response specifications of lateral tank tracking capability and level of liquid
slosh reduction.
Numerical Calculation of Solid-Liquid two-Phase Flow Inside a Small Sewage Pumptheijes
Based on a mixture multiphase flow model,theRNG k–εturbulencemodelandfrozen rotor method were used to perform a numerical simulation of steady flow in the internal flow field of a sewage pump that transports solid and liquid phase flows. Resultsof the study indicate that the degree of wear on the front and the back of the blade suction surface from different densities of solid particles shows a completely opposite influencing trend. With the increase of delivered solid-phase density, the isobaric equilibrium position moves to the leading edge point of the blade, but the solid-phase isoconcentration point on the blade pressure surface and suction surface basically remains unchanged. The difference between hydraulic lift and water lift indelivering solid- and liquid-phase flows shows a rising trend with the increase of working flow
In the framework of mathematical morphology, watershed transform (WT) represents a key step in image segmentation procedure. In this paper, we present a thorough analysis of some existing watershed approaches in the discrete case: WT based on flooding, WT based on path-cost minimization, watershed based on topology preservation, WT based on local condition and WT based on minimum spanning forest. For each approach, we present detailed description of processing procedure followed by mathematical foundations and algorithm of reference. Recent publications based on some approaches are also presented and discussed. Our study concludes with a classification of different watershed transform algorithms according to solution uniqueness, topology preservation, prerequisites minima computing and linearity.
In this paper, the unsteady motion of a spherical particle rolling down an inclined tube in a
Newtonian fluid for a range of Reynolds numbers was solved using a simulation method called
the Differential Transformation Method (DTM). The concept of differential transformation is
briefly introduced, and then we employed it to derive solution of nonlinear equation. The
obtained results for displacement, velocity and acceleration of the motion from DTM are
compared with those from numerical solution to verify the accuracy of the proposed method.
The effects of particle diameter (size), continues phase viscosity and inclination angles was
studied. As an important result it was found that the inclination angle does not affect the
acceleration duration. The results reveal that the Differential Transformation Method can achieve suitable results in predicting the solution of such problems.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
Effect of Geometry on Variation of Heat Flux and Drag for Launch Vehicle -- Z...Abhishek Jain
Above Research Paper can be downloaded from www.zeusnumerix.com
The research paper aims at studying the variation of the geometry of the launch vehicle nose and its effect on heat flux. CFDExpert software is first validated on NASA's hyperballistic model and then used on proposed geometries. Various nose radius and blending shapes are studied for effect on drag and heat flux. Cone ogive shape is found to decrease heat flux with an insignificant increase in drag. Authors Abhishek Jain (Zeus Numerix), Rohan Kedar and Prof V Kalamkar (SPCOE).
The sun is the source of solar energy and the solar energy is pollution free and available in ample amount which can be used for heating, electricity generation and coking purpose.The position of sun constantly varies so its intensity also varies which affect the heat quantity incident upon the system. The aim of present work is overcome this difficultly using wax type phase change material which behaves like heat storage medium as position of sun changes. This phase change material based solar water heater is fabricated and thermal performance evaluation can be carried out using K type thermocouple.
Heat Transfer in Porous Media With Slurry of Phase Change MaterialsCSCJournals
3-D laminar model of a rectangular porous channel with high thermal conductivity and constant wall heat flux is chosen to investigate the enhancement of heat transfer when used in conjunction with the phase change material slurry. Numerical simulations for various wall heat fluxes and inlet velocities are carried out. The slurry consist of microencapsulated octadecane and water. The heat transfer coefficient of the porous channel with pure water and with micro-encapsulated phase change material are calculated and compared. The effect of porosity and permeability of the porous medium on the heat transfer coefficient while using a slurry of phase change material are studied. The results show that the heat transfer coefficient of the porous channel can improve by introducing phase change material slurry, but only under certain heat fluxes, inlet velocities, and porous media properties.
H-infinity controller with graphical LMI region profile for liquid slosh supp...TELKOMNIKA JOURNAL
This paper presents a H-infinity synthesis with pole clustering based on LMI region schemes for
liquid slosh control. Using LMI approach, the regional pole placement known as LMI region combined with
design objective in H-infinity controller guarantee a fast input tracking capability and very minimal liquid
slosh. A graphical profile of the transient response of liquid slosh suppression system with respect to pole
placement is very useful in giving more flexibility to the researcher in choosing a specific LMI region. With
the purpose to confirm the design of control scheme, a liquid slosh model is considered to represent
the lateral slosh movement. Supremacy of the proposed approach is shown by comparing the results with
hybrid model-free fuzzy-PID controller with derivative filter. The performance of the control schemes is
examined in terms of time response specifications of lateral tank tracking capability and level of liquid
slosh reduction.
Numerical Calculation of Solid-Liquid two-Phase Flow Inside a Small Sewage Pumptheijes
Based on a mixture multiphase flow model,theRNG k–εturbulencemodelandfrozen rotor method were used to perform a numerical simulation of steady flow in the internal flow field of a sewage pump that transports solid and liquid phase flows. Resultsof the study indicate that the degree of wear on the front and the back of the blade suction surface from different densities of solid particles shows a completely opposite influencing trend. With the increase of delivered solid-phase density, the isobaric equilibrium position moves to the leading edge point of the blade, but the solid-phase isoconcentration point on the blade pressure surface and suction surface basically remains unchanged. The difference between hydraulic lift and water lift indelivering solid- and liquid-phase flows shows a rising trend with the increase of working flow
In the framework of mathematical morphology, watershed transform (WT) represents a key step in image segmentation procedure. In this paper, we present a thorough analysis of some existing watershed approaches in the discrete case: WT based on flooding, WT based on path-cost minimization, watershed based on topology preservation, WT based on local condition and WT based on minimum spanning forest. For each approach, we present detailed description of processing procedure followed by mathematical foundations and algorithm of reference. Recent publications based on some approaches are also presented and discussed. Our study concludes with a classification of different watershed transform algorithms according to solution uniqueness, topology preservation, prerequisites minima computing and linearity.
In this paper, the unsteady motion of a spherical particle rolling down an inclined tube in a
Newtonian fluid for a range of Reynolds numbers was solved using a simulation method called
the Differential Transformation Method (DTM). The concept of differential transformation is
briefly introduced, and then we employed it to derive solution of nonlinear equation. The
obtained results for displacement, velocity and acceleration of the motion from DTM are
compared with those from numerical solution to verify the accuracy of the proposed method.
The effects of particle diameter (size), continues phase viscosity and inclination angles was
studied. As an important result it was found that the inclination angle does not affect the
acceleration duration. The results reveal that the Differential Transformation Method can achieve suitable results in predicting the solution of such problems.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is a team of researchers not publication services or private publications running the journals for monetary benefits, we are association of scientists and academia who focus only on supporting authors who want to publish their work. The articles published in our journal can be accessed online, all the articles will be archived for real time access.
Our journal system primarily aims to bring out the research talent and the works done by sciaentists, academia, engineers, practitioners, scholars, post graduate students of engineering and science. This journal aims to cover the scientific research in a broader sense and not publishing a niche area of research facilitating researchers from various verticals to publish their papers. It is also aimed to provide a platform for the researchers to publish in a shorter of time, enabling them to continue further All articles published are freely available to scientific researchers in the Government agencies,educators and the general public. We are taking serious efforts to promote our journal across the globe in various ways, we are sure that our journal will act as a scientific platform for all researchers to publish their works online.
International Journal of Engineering Research and Applications (IJERA) is a team of researchers not publication services or private publications running the journals for monetary benefits, we are association of scientists and academia who focus only on supporting authors who want to publish their work. The articles published in our journal can be accessed online, all the articles will be archived for real time access.
Our journal system primarily aims to bring out the research talent and the works done by sciaentists, academia, engineers, practitioners, scholars, post graduate students of engineering and science. This journal aims to cover the scientific research in a broader sense and not publishing a niche area of research facilitating researchers from various verticals to publish their papers. It is also aimed to provide a platform for the researchers to publish in a shorter of time, enabling them to continue further All articles published are freely available to scientific researchers in the Government agencies,educators and the general public. We are taking serious efforts to promote our journal across the globe in various ways, we are sure that our journal will act as a scientific platform for all researchers to publish their works online.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Study of Velocity and Pressure Distribution Characteristics Inside Of Catalyt...ijceronline
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
This study aims to investigate the effect of single cavity when it presence at a
specific location within the homogenous soil, on the behavior of seepage and uplift
pressure under a hydraulic structure. The results are analyzed to introduce
deterministic formulae for calculating the amount of seepage and the uplift pressure
head. The work was done in three stages by using experimental investigation; the first
stage includes 36 models of 75mm in diameter cavity, while the second and the third
stages includes eight models for each with 100mm and 34mm diameter of cavity,
respectively. The results shows that, when the cavity presence at the left side its impact
was positive on the seepage behavior. While the influence was changed to a negative
impact when the cavity presence at the right side, except at some specific locations. The
statistical software has been employed to generate the two deterministic formulae, and
the results of multiple regressions are checked by statistical indices for the purpose of
recognizing the reliability of the proposed formulae.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Studies on impact of inlet viscosity ratio, decay rate & length scales in a c...QuEST Global
Modern aircraft engine designs are driven towards higher operating temperature and lower coolant flow requirements. During the flight mission, the hot gas path components encounter flows at different pressure, temperature and turbulence conditions. During design of such components, there is always an interest towards fundamental understanding of the impact of inlet turbulence on overall performance. The paper presents aerodynamic performance (stage efficiency) impact of stator inlet viscosity ratio, decay rate and length scales in a cooled turbine rig, based on CFD studies only. Through CFD studies, it is observed that an inlet length scale variation by 10 times could impact the aerodynamic efficiency by ~0.5% to 4% depending on the size of the length scale. Efficiency drops with higher flow length scales and turbulence intensity. The length scale effects are observed to be more predominant with high turbulence intensities than at low turbulence intensities. Similarly a viscosity ratio increase by 1000 times can decrease efficiency by < 0.5% in the lower bounds and can drastically increase to ~ 3% at higher bounds. The efficiency drop can be as much as 2.5 % for a decay rate change from 0.01 to 1 for viscosity ratio of 10000.
zkStudyClub - Reef: Fast Succinct Non-Interactive Zero-Knowledge Regex ProofsAlex Pruden
This paper presents Reef, a system for generating publicly verifiable succinct non-interactive zero-knowledge proofs that a committed document matches or does not match a regular expression. We describe applications such as proving the strength of passwords, the provenance of email despite redactions, the validity of oblivious DNS queries, and the existence of mutations in DNA. Reef supports the Perl Compatible Regular Expression syntax, including wildcards, alternation, ranges, capture groups, Kleene star, negations, and lookarounds. Reef introduces a new type of automata, Skipping Alternating Finite Automata (SAFA), that skips irrelevant parts of a document when producing proofs without undermining soundness, and instantiates SAFA with a lookup argument. Our experimental evaluation confirms that Reef can generate proofs for documents with 32M characters; the proofs are small and cheap to verify (under a second).
Paper: https://eprint.iacr.org/2023/1886
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Essentials of Automations: The Art of Triggers and Actions in FMESafe Software
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...Neo4j
Leonard Jayamohan, Partner & Generative AI Lead, Deloitte
This keynote will reveal how Deloitte leverages Neo4j’s graph power for groundbreaking digital twin solutions, achieving a staggering 100x performance boost. Discover the essential role knowledge graphs play in successful generative AI implementations. Plus, get an exclusive look at an innovative Neo4j + Generative AI solution Deloitte is developing in-house.
GridMate - End to end testing is a critical piece to ensure quality and avoid...ThomasParaiso2
End to end testing is a critical piece to ensure quality and avoid regressions. In this session, we share our journey building an E2E testing pipeline for GridMate components (LWC and Aura) using Cypress, JSForce, FakerJS…
UiPath Test Automation using UiPath Test Suite series, part 6DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 6. In this session, we will cover Test Automation with generative AI and Open AI.
UiPath Test Automation with generative AI and Open AI webinar offers an in-depth exploration of leveraging cutting-edge technologies for test automation within the UiPath platform. Attendees will delve into the integration of generative AI, a test automation solution, with Open AI advanced natural language processing capabilities.
Throughout the session, participants will discover how this synergy empowers testers to automate repetitive tasks, enhance testing accuracy, and expedite the software testing life cycle. Topics covered include the seamless integration process, practical use cases, and the benefits of harnessing AI-driven automation for UiPath testing initiatives. By attending this webinar, testers, and automation professionals can gain valuable insights into harnessing the power of AI to optimize their test automation workflows within the UiPath ecosystem, ultimately driving efficiency and quality in software development processes.
What will you get from this session?
1. Insights into integrating generative AI.
2. Understanding how this integration enhances test automation within the UiPath platform
3. Practical demonstrations
4. Exploration of real-world use cases illustrating the benefits of AI-driven test automation for UiPath
Topics covered:
What is generative AI
Test Automation with generative AI and Open AI.
UiPath integration with generative AI
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Dr. Sean Tan, Head of Data Science, Changi Airport Group
Discover how Changi Airport Group (CAG) leverages graph technologies and generative AI to revolutionize their search capabilities. This session delves into the unique search needs of CAG’s diverse passengers and customers, showcasing how graph data structures enhance the accuracy and relevance of AI-generated search results, mitigating the risk of “hallucinations” and improving the overall customer journey.
Communications Mining Series - Zero to Hero - Session 1DianaGray10
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
Enchancing adoption of Open Source Libraries. A case study on Albumentations.AIVladimir Iglovikov, Ph.D.
Presented by Vladimir Iglovikov:
- https://www.linkedin.com/in/iglovikov/
- https://x.com/viglovikov
- https://www.instagram.com/ternaus/
This presentation delves into the journey of Albumentations.ai, a highly successful open-source library for data augmentation.
Created out of a necessity for superior performance in Kaggle competitions, Albumentations has grown to become a widely used tool among data scientists and machine learning practitioners.
This case study covers various aspects, including:
People: The contributors and community that have supported Albumentations.
Metrics: The success indicators such as downloads, daily active users, GitHub stars, and financial contributions.
Challenges: The hurdles in monetizing open-source projects and measuring user engagement.
Development Practices: Best practices for creating, maintaining, and scaling open-source libraries, including code hygiene, CI/CD, and fast iteration.
Community Building: Strategies for making adoption easy, iterating quickly, and fostering a vibrant, engaged community.
Marketing: Both online and offline marketing tactics, focusing on real, impactful interactions and collaborations.
Mental Health: Maintaining balance and not feeling pressured by user demands.
Key insights include the importance of automation, making the adoption process seamless, and leveraging offline interactions for marketing. The presentation also emphasizes the need for continuous small improvements and building a friendly, inclusive community that contributes to the project's growth.
Vladimir Iglovikov brings his extensive experience as a Kaggle Grandmaster, ex-Staff ML Engineer at Lyft, sharing valuable lessons and practical advice for anyone looking to enhance the adoption of their open-source projects.
Explore more about Albumentations and join the community at:
GitHub: https://github.com/albumentations-team/albumentations
Website: https://albumentations.ai/
LinkedIn: https://www.linkedin.com/company/100504475
Twitter: https://x.com/albumentations
Generative AI Deep Dive: Advancing from Proof of Concept to ProductionAggregage
Join Maher Hanafi, VP of Engineering at Betterworks, in this new session where he'll share a practical framework to transform Gen AI prototypes into impactful products! He'll delve into the complexities of data collection and management, model selection and optimization, and ensuring security, scalability, and responsible use.
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved.
The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring.
The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Mind map of terminologies used in context of Generative AI
Cj33518522
1. K.Mohan Laxmi, V.Ranjith Kumar, Y.V.Hanumantha Rao / International Journal of
Engineering Research and Applications (IJERA) ISSN: 2248-9622 www.ijera.com
Vol. 3, Issue 3, May-Jun 2013, pp.518-522
518 | P a g e
Modeling And Simulation of Gas Flow Velocity In Catalytic
Converter With Porous
*1
K.Mohan Laxmi, 2
V.Ranjith Kumar, 3
Y.V.Hanumantha Rao
1
M.Tech Student, Mechanical Engineering Department, KL University, Vijayawada.
2
Assistant Professor, Mechanical Engineering Department, KL University, Vijayawada.
3Professor, Head of The Department , Mechanical Engineering, KL University, Vijayawada.
Abstract:
Stringent emission regulations around
the world necessitate the use of high-efficiency
catalytic converters in vehicle exhaust systems.
Experimental studies are more expensive than
computational studies. Also using computational
techniques allows one to obtain all the required
data for the Catalytic Converter, some of which
could not be measured. In the present work,
Geometric modeling ceramic monolith substrate
with square shaped channel type of Catalytic
converter and coated platinum and palladium
using fluent software. In this software we are
using crate inlet-outlet flanges and housing of
the catalytic converter. After design of modeling
us done different parameters in Fluent Pre-
process like Analysis Type, Domain Type etc.
This project studies the different
porosity of porous medium how to affect to flow
pressure field under the conditions of same inlet
velocity and ceramic diameter by CFD method.
Geometric model of the catalytic converter has
been establish and meshed by the pre-processing
tool of FLUENT. The flow pressure simulation
filled contours and curve of center line static
pressure distribution of the ceramic porous
material show that in the case of other
conditions remain unchanged, the less the
porosity of the ceramic porous material, the
higher the inlet pressure and the more the
pressure loss of the porous material. The more
Porosity of ceramic is beneficial to exhaust
catalytic converter.
Key words: Catalytic Converter, Ceramic
material, CFX, FLUENT, Porous.
I.INTRODUCTION
Porous material made with ceramic can be
used into two way catalytic converter .The gas
speed distribution in the converter is an important
factor in the catalytic ability and the effect of
catalytic materials. The paper studies on the
variation of the gas flow pressure the converter by
the computational fluid dynamics methods. There
are many CFD commercial software such as
PHOENICS, CFX, STAR-CD, FIDIP and
FLUENT etc. FLUENT software has a very wide
range of applications flexible characteristics of the
grid, the strong capabilities of numerical solution
comprehensive functionality. This article will study
the fluid dynamics of the catalytic converters using
the FLUENT software.
Air pollution and global warming is a major issue
nowadays. For this reason, emission limits are
introduced around the world and continually being
made stricter every year. The enforcement of this
regulation has led to the compulsory utilization of
catalytic converter as an emission treatment to the
exhaust gas of vehicles.
1.1. HISTORY
In 1973, General Motors faced new air
pollution regulations and needed a way to make its
cars conform to the stricter standards. Robert C.
Stempel, who at the time was a special assistant to
the GM president, was assigned to oversee
development of a technology capable of addressing
the problem. Under Stempel's guidance, GM built
on existing research to produce the first catalytic
converter for use in an automobile.
Catalytic converters were first installed in vehicles
made in 1975 in response to EPA regulations
passed two years earlier tightening auto emissions
and requiring a gradual decrease in the lead content
of all gasoline.
Since the introduction of stringent
emission regulations in the US in the 1970s, car
manufacturers have modified their exhaust systems
to incorporate catalytic converters for the removal
of NOx, CO and hydro carbons. All new cars
registered throughout the European Union from 1st
January 1993 have to be fitted with catalytic
converters. Platinum, palladium and rhodium are
the main active components.
A potential problem appears with the
release of platinum group metals (PGMs) from the
converters into the environment. There is now
convincing evidence for the release of platinum
group metals (PGMs) into the environment,
possibly by abrasion of the auto catalyst. As a
result, PGMs are found to have increased in the
environment. In recent study, we found that PGMs
have increased in road dust since 1984 and
particularly 1991.
2. K.Mohan Laxmi, V.Ranjith Kumar, Y.V.Hanumantha Rao / International Journal of
Engineering Research and Applications (IJERA) ISSN: 2248-9622 www.ijera.com
Vol. 3, Issue 3, May-Jun 2013, pp.518-522
519 | P a g e
II.PROBLEM DESCRIPTION
Catalytic converters are used on most
vehicles on the road today. They reduce harmful
emissions from internal combustion engines (such
as oxides of nitrogen, hydrocarbons, and carbon
monoxide) that are theresult of incomplete
combustion. Most new catalytic converters are the
ceramic monolith substrate with square channels
type and are usually coated with platinum,
rhodium, or palladium.
Figure: 2.1. Mesh geometry of Catalytic Converter
In this project Set up a porous zone for the
substrate with appropriate resistances. Calculate a
solution for gas flow through the catalytic converter
using the pressure- based solver. Plot pressure and
velocity distribution on specified planes of the
geometry. Determine the pressure drop through the
substrate and the degree of non-uniformity of flow
through cross sections of the geometry using X-Y
plots and numerical reports
III.PROBLEM FORMULATION
The catalytic converter modeled here is shown in
Figure. The nitrogen gas flows in through the inlet
with a uniform velocity of 22.6 m/s, passes through
a ceramic monolith substrate with square shaped
channels, and then exits through the outlet.
Figure:3: Geometry of Catalytic Converter
While the flow in the inlet and outlet
sections is turbulent, the flow through the substrate
is laminar and is characterized by inertial and
viscous loss coefficients in the flow (X) direction.
The substrate is impermeable in other directions,
which is modeled using loss coefficients whose
values are three orders of magnitude higher than in
the X direction.
3.1.PARAMETERS:
user mode: General Model
Analysis Type: Steady State
Domain Type: Multiple Domain
Fluid Type: Nitrogen Gas
Turbulence Model : K-Epsilon
Heat Transfer: Thermal Energy
Boundary Conditions: Inlet (Subsonic),
outlet (Subsonic),Wall :No slip
Domain Interface: Fluid-Porous
IV.MODELLING
Modeling of flows through a porous
medium requires a modified formulation of the
Navier-Stokes equations, which reduces to their
classical form and includes additional resistance
terms induced by the porous region.
The incompressible Navier-Stokes
equations in a given domain Ω and time interval
(0,t) can be written
as
),0().( 2
tXfonpuuu
t
u
· u = 0 on x(0,t)
where u = u(x,t) denotes the velocity vector, p =
p(x,t) the pressure field, ρ the constant density, µ
the dynamic viscosity coefficient and f represents
the external body forces acting on the fluid (i.e.
gravity).
In the case of solids, small velocities can
be considered and (u·∇)u term is neglected.
Therefore, assuming an incompressible flow
(constant density) in a certain domain Ω and
considering the mass conservation equation, also
called continuity equation, the Navier-Stokes
equation can be written as follows:
),0(2
tXfonpu
t
u
· u = 0 on x(0,t)
The general form of the Navier-Stokes
equation is valid for the flow inside pores of the
porous medium but its solution cannot be
generalized to describe the flow in porous region.
Therefore, the general form of Navier-Stokes
equation must be modified to describe the flow
through porous media. To this aim, Darcy’s law is
used to describe the linear relation between the
velocity u and gradient of pressure p in the porous
medium. It defines the permeability resistance of
the flow in a porous media:
3. K.Mohan Laxmi, V.Ranjith Kumar, Y.V.Hanumantha Rao / International Journal of
Engineering Research and Applications (IJERA) ISSN: 2248-9622 www.ijera.com
Vol. 3, Issue 3, May-Jun 2013, pp.518-522
520 | P a g e
∇p= - µDu in Ωpx(0,t)
Where Ωp is the porous domain, D the Darcy's law
resistance matrix and u the velocity vector. In the
case of considering an homogeneous porous media,
D is a diagonal matrix with coefficients 1/α, where
α is the permeability coefficient.
The Reynolds number is defined as:
Where U and L a characteristic velocity and a
characteristic length scale, respectively. In order to
characterize the inertial effects, it is possible to
define the Reynolds number associated to the
pores:
Where δ is the characteristic pore size. Whereas
Darcy law is reliable for values of Rep< 1,
otherwise it is necessary to consider a more general
model which accounts also for the inertial effects,
such as:
∇p= - (µDu + ρCu|u|) in Ωpx(0,t)
Where C the inertial resistance matrix.
Considering a modified Navier-Stokes
equation in the whole domain including the two
source terms associated to the resistance induced
by the porous medium (linear Darcy and inertial
loss term), the momentum equations become:
ρ - µ∇
2
u + ∇p- (µDu + ρCu|u|) = 0 in x(0,t)
In the case of considering an homogeneous porous
media, D is a diagonal matrix with coefficients
1/α,where α is the permeability coefficient and C is
also a diagonal matrix. Therefore, a modified
Darcy's resistance matrix should be used in Tdyn,
as follows
ρ - µ∇
2
u + ∇p= D*u in x(0,t)
D* = D+ µρu|u|
where I is the identity matrix. It should be noted
that in laminar flows through porous media, the
pressure p is proportional to velocity u and C can
be considered zero (D
*
= D). Therefore, the Navier-
Stokes momentum equations can be rewritten as:
ρ - µ∇
2
u + ∇p= - µDu in Ωx(0,t)
These momentum equations are resolved
by Tdyn in the case of solids, where (u·∇)u term
vanishes due to small velocities. If (u·∇)u = 0 can't
be neglected in the modelization (i.e. high
velocities),then Tdyn should resolve the following
momentum equations in a fluid instead of in a
solid:
ρ ( + (u · ∇)u) - µ∇
2
u + ∇p = - µDu in Ωx(0,t)
In order to add the Darcy's resistance matrix D
*
an
appropriate function should be inserted in Tdyn.
See the figure below and "Function syntax" in the
Help manual of Tdyn for more details about
defining functions
4.1.Geometry And Boundary Conditions:
The following Conditions concerns the
analysis of a gas flowing through a catalytic
converter. The main objective is to determine the
pressure gradient and the velocity distribution
through the porous media that fills the catalytic
element. This model is intended to exemplify the
use of Tdyn capabilities to solve problems
involving flow through porous media.
The boundary conditions are applied as shown in
the figures below. First, a Wall/Body condition
with a Y-Plus wall boundary type is applied to the
external surface of the catalytic converter.
Figure: 4.1. External Surface of the Catalytic
Converter
A Fix Velocity condition is further applied
to the inlet surface of the model (in blue in the
figure below) so that the velocity vector is fixed
there to the value v = (22.6, 0.0, 0.0) m/s. Finally, a
Pressure Field condition is used to fix the the
dynamic pressure to zero at the outlet surface of the
control volume (in red in the figure below).
Figure:4.2. Control Volumes of Catalytic Converter
4. K.Mohan Laxmi, V.Ranjith Kumar, Y.V.Hanumantha Rao / International Journal of
Engineering Research and Applications (IJERA) ISSN: 2248-9622 www.ijera.com
Vol. 3, Issue 3, May-Jun 2013, pp.518-522
521 | P a g e
4.2. Materials:
Two different materials are used in order
to simulate the gas flowing through the catalyst
converter. Fluid flow properties, density and
viscosity, are the same in both materials and
correspond to those of nitrogen gas. The two
materials only differ on the values of the Darcy's
law matrix. While the first one has a null matrix,
the second one has assigned a Darcy matrix
incorporating the resistance and inertial effects of
the porous media. Hence, the first material is
applied to the inlet and outlet channel regions of
thecatalyst converter (in blue in the figure below),
while the second one is applied to the intermediate
volume corresponding to the porous media (in
yellow in the figure below).
Figure: 4.3.Materials of the catalytic Converter
The Darcy's law matrix used to model the porous
media is taken to be diagonal but anisotropic. The
corresponding values of the viscous (D) and inertial
(C) resistance terms are those in the table below
Note that the components of the Darcy's matrix are
given with respect to the global axis system (X, Y,
Z) Note that the components of the Darcy's matrix
are given with respect to the global axis system (X,
Y, Z) so that the geometry must be conveniently
oriented.
V.RESULTS AND DISCUSSIONS
5.1. Graphical Results:
Graph: 5.1. Surface Monitor Plot of Mass Flow Rate
with Number of Iterations
After running fluent software the values of mass
flow rate changes at different iteration we can
obsever in the Garaph .The Graph changes at
different direction with respect to Mass Flow
rates.After some iterations garph comes constant
values (minor difference).
Figure: 5.2. Plot of the Static Pressure on the porous-cl
Line Surface
The above Graph shown the Static Pressure on the
porous-cl Line Surface the pressure drop across the
porous substrate can be seen to be roughly 300 Pa.
5.2. SIMULATION RESULTS:
The Velocityflow of gases rapidly in the middle
section, where the fluid velocity changes as it
passes through the porous substrate. The pressure
drop can be high, due to the inertial and viscous
resistance of the porous media.
The X-velocity component distribution of
the fluid flow. In this picture, it becomes evident
how the fluid decelerates rapidly when entering to
the porous region. It can also be observed how the
fluid recirculates before entering the central region
of the catalyst (negative values of X-velocity
component in dark blue) due to the resistance
exherted by the porous media
Figure: 5.2.1. Velocity Vectors on the y=0 Plane
The flow pattern shows that the flow enters the
catalytic converter as a jet, with recirculation on
either side of the jet. As it passes through the
porous substrate, it decelerates and straightens out,
and exhibits a more uniform velocity distribution.