Assessment on how to enhance thermal comfort simulation studies, by adding a human thermal model. A coupled fluid-structure simulation with CFD and Matlab involved.
The presentation gives glances of the importance of CFD analysis in engineering design with an illustration/ case study. For more details, follow the webinar "Role of CFD in Engineering Design" on https://www.learncax.com/knowledge-base/blog/by-author/ganesh-visavale
The presentation gives glances of the importance of CFD analysis in engineering design with an illustration/ case study. For more details, follow the webinar "Role of CFD in Engineering Design" on https://www.learncax.com/knowledge-base/blog/by-author/ganesh-visavale
This chapter contains:-.
Analytical Methods of two dimensional steady state heat conduction
Finite difference Method application on two dimensional steady state heat conduction.
Finite difference method on irregular shape of a system
Computational Fluid Dynamics (CFD) is the simulation of fluids engineering systems using modeling [mathematical physical problem formulation) and numerical methods (discretization methods, solvers, numerical parameters, and grid generations, etc]
The Powerpoint presentation discusses about the Introduction to CFD and its Applications in various fields as an Introductory topic for Mechanical Engg. Students in General.
This chapter contains:-.
Analytical Methods of two dimensional steady state heat conduction
Finite difference Method application on two dimensional steady state heat conduction.
Finite difference method on irregular shape of a system
Computational Fluid Dynamics (CFD) is the simulation of fluids engineering systems using modeling [mathematical physical problem formulation) and numerical methods (discretization methods, solvers, numerical parameters, and grid generations, etc]
The Powerpoint presentation discusses about the Introduction to CFD and its Applications in various fields as an Introductory topic for Mechanical Engg. Students in General.
Thermal Resistance Modelling with SimScaleSimScale
Thermal resistance network models are thermal models that represent the complex characteristics of an electrical component in a simple form that can be used to carry out thermal analysis in many ways. We can also use thermal resistance models in CFD to obtain better results without adding excessive complexity to the simulation.
Learn what thermal resistance network modelling is, how you can use them in SimScale, and how you can find the resistance values with a detailed thermal model if the manufacturer has not provided them.
Computational Estimation of Flow through the C-D Supersonic Nozzle and Impuls...IJMTST Journal
In this paper, CFD analysis of flow within, Convergent – Divergent rectangular super sonic nozzle and super sonic impulse turbine with partial admission have been performed. The analysis has been performed according to shape of a super sonic nozzle and length of axial clearance and the objective is to investigate the effect of nozzle-rotor interaction on turbine’s performance. It is found that nozzle-rotor interaction losses are largely dependent on axial clearance, which affects the flow within nozzle and the extent of flow expansion. Therefore selecting appropriate length of axial clearance can decrease nozzle-rotor interaction losses. The work is carried in two stages:1) Modeling and analysis of flow for rectangular convergent divergent super sonic nozzle. 2) Prediction of optimal axial gap between the nozzle and rotor blades by allowing the above nozzle flow. In the present work, using a finite volume commercial code, ANSYS FLUENT 14.5, carries out flow through the convergent divergent nozzle study. The nozzle geometry is modeled and grid is generated using ANSYS14.5 Software. Computational results are in good agreement with the experimental ones.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
Contact with Dawood Bhai Just call on +92322-6382012 and we'll help you. We'll solve all your problems within 12 to 24 hours and with 101% guarantee and with astrology systematic. If you want to take any personal or professional advice then also you can call us on +92322-6382012 , ONLINE LOVE PROBLEM & Other all types of Daily Life Problem's.Then CALL or WHATSAPP us on +92322-6382012 and Get all these problems solutions here by Amil Baba DAWOOD BANGALI
#vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore#blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #blackmagicforlove #blackmagicformarriage #aamilbaba #kalajadu #kalailam #taweez #wazifaexpert #jadumantar #vashikaranspecialist #astrologer #palmistry #amliyaat #taweez #manpasandshadi #horoscope #spiritual #lovelife #lovespell #marriagespell#aamilbabainpakistan #amilbabainkarachi #powerfullblackmagicspell #kalajadumantarspecialist #realamilbaba #AmilbabainPakistan #astrologerincanada #astrologerindubai #lovespellsmaster #kalajaduspecialist #lovespellsthatwork #aamilbabainlahore #Amilbabainuk #amilbabainspain #amilbabaindubai #Amilbabainnorway #amilbabainkrachi #amilbabainlahore #amilbabaingujranwalan #amilbabainislamabad
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
2. Agenda
2020-11-11 2/27Final Presentation
1. Introduction
– What is a HTRM?
– Aim and antecedents
2. CFD – Case 0. Human in a 3D simplified Room
– Model and Solvers
– 2.1 CFD Uncoupled. Validation
– 2.2 Building a Coupling system
– 2.3 CFD Coupled. Validation
3. CFD – Case 1. Human in an Aircraft Cabin
4. What is a HTRM?
2020-11-11 4/27Final Presentation
• Thermoregulatory model
Skin
Temperature (13)
Fiala based:
• Calculates inner body thermal responses.
• 13 body parts, as cylinders.
• Gives a Boundary Condition
for CFD Skin temperature.
• Implemented in Matlab.
5. Aim and antecedents
2020-11-11 5/27Final Presentation
AIM: Develope an integrated coupled simulation system for
predicting both the dynamic, non-uniform environmental
conditions in an aircraft cabin (CFD) and the human
physiological and perceptual reponses under these complex
circumstances.
Main antecendents:
• P.C. Cropper and T. Yang and M. Cook and D. Fiala. Coupling a model of
human thermoregulation with computational fluid dynamics for
predicting human–environment interaction. 2010.
• Abhishek Raina and Logeshkumar Srinivasan. CFD study of different
aircraft cabin ventilation systems on thermal comfort and contaminant
transport. 2020.
8. CFD – Case 0. Human in a Simplified 3D Room
2020-11-11 8/27Final Presentation
a) Human Manikin (Abishek & Raina) b) CFD Case 0
CAD Model.
• Model and Solvers:
9. CFD – Case 0. Human in a Simplified 3D Room
2020-11-11 9/27Final Presentation
• Model and Solvers:
• Mesh
11. CFD – Case 0. Human in a Simplified 3D Room
2020-11-11 11/27Final Presentation
a) CFD (Sorensen) b) CFD Case 0
Distributions of vertical velocity (m/s). Sideview in symmetry-plane (right) and frontview (left)
(centred near top of head).
.
Validation of CFD: A) Uncoupled. Sorensen Recreation.
12. CFD – Case 0. Human in a Simplified 3D Room
2020-11-11 12/27Final Presentation
a) Experimental (Sorensen) b) CFD Case 0
Velocity plots above human head section centered.
Validation of CFD: A) Uncoupled. Sorensen Recreation.
13. CFD – Case 0. Human in a Simplified 3D Room
2020-11-11 13/27Final Presentation
Validation of CFD: A) Uncoupled. Sorensen Recreation.
14. CFD – Case 0. Human in a Simplified 3D Room
2020-11-11 14/27Final Presentation
Validation of CFD: A) Uncoupled. Sorensen Recreation.
Radiative Heat Transfer Coefficient:
h r [W m-2 K-1]
15. CFD – Case 0. Human in a Simplified 3D Room
2020-11-11 15/27Final Presentation
Validation of CFD: A) Uncoupled. Sorensen Recreation.
Convective Heat Transfer Coefficient:
h c [W m-2 K-1]
2<h<4
17. CFD – Case 0. Human in a Simplified 3D Room
2020-11-11 17/27Final Presentation
Building a Coupling system ( with AAS Matlab Toolbox)
• Coupling Algorithm:
Skin
Temperature (13)
Convective & Radiative
Skin Heat Fluxes (13) &(13)
21. CFD – Case 1. Human in an Aircraft Cabin
2020-11-11 21/27Final Presentation
CAD Model.
• Model and Solvers:
22. CFD – Case 1. Human in an Aircraft Cabin
2020-11-11 22/27Final Presentation
• Model and Solvers:
Cabin Mesh.
23. CFD – Case 1. Human in an Aircraft Cabin
2020-11-11 23/27Final Presentation
0 HTRM
1 HTRM
2 HTRM
• Distributions of velocity (m/s) and temperature (ºC)
X
HTRM
X
HTRM
X
HTRM
24. CFD – Case 1. Human in an Aircraft Cabin
2020-11-11 24/27Final Presentation
0 HTRM
1 HTRM
2 HTRM
• Distributions of velocity vectors (m/s).
25. CFD – Case 1. Human in an Aircraft Cabin
2020-11-11 25/27Final Presentation
h c [W m-2 K-1] h r [W m-2 K-1]
0 HTRM
1 HTRM
2 HTRM
Convective:
Radiative:
26. CFD – Case 1. Human in an Aircraft Cabin
2020-11-11 26/27Final Presentation
• Thermal Comfort. Coupled simulation.
27. Conclusions
2020-11-11 27/27Final Presentation
Main Objective: Developing a Coupled simulation system.
Improvement for analysing Thermal Comfort for humans, taking data
directly from a human-thermoregulatory model.
local values of: Thermal Sensation and Comfort for every part of the
body and overall.
This approach enables:
i) calculating more realistically the interaction and non uniform
transient heat transfer between the skin surface and the
surrounding air and structures
ii) taking into account the effect of human thermoregulation and
individual human parameters on thermal sensation and comfort.