This document discusses using the Iber model to simulate water quality in rivers and estuaries. It describes Iber's capabilities for hydrodynamic modeling and its water quality module. The water quality module solves advection-diffusion equations for substances like salinity, temperature, bacteria, oxygen, and nitrogen. Examples show simulations of salinity distribution in an estuary and temperature in a river junction. The document also presents a case study modeling bacteriological contamination from point discharges in an estuary.
Modern oil and gas field management is increasingly reliant on detailed and precise 3D reservoir characterisation, and timely areal monitoring. Borehole seismic techniques bridge the gap between remote surface-seismic observations and downhole reservoir evaluation: Borehole seismic data provide intrinsically higher-resolution, higher-fidelity images than surface-seismic data in the vicinity of the wellbore, and unique access to properties of seismic wavefields to enhance surface-seismic imaging. With the advent of new, operationally-efficient very large wireline receiver arrays; fiber-optic recording using Distributed Acoustic Sensing (DAS); the crosswell seismic reflection technique, and advanced seismic imaging algorithms such as Reverse Time Migration, a new wave of borehole seismic technologies is revolutionizing 3D seismic reservoir characterization and on-demand reservoir surveillance. New borehole seismic technologies are providing deeper insights into static reservoir architecture and properties, and into dynamic reservoir performance for conventional water-flood production, EOR, and CO2 sequestration – in deepwater, unconventional, full-field, and low-footprint environments. This lecture will begin by illustrating the wide range of borehole seismic solutions for reservoir characterization and monitoring, using a diverse set of current- and recent case study examples – through which the audience will gain an understanding of the appropriate use of borehole seismic techniques for field development and management. The lecture will then focus on DAS, explaining how the technique works; its capability to deliver conventional borehole seismic solutions (with key advantages over geophones); then describing DAS’s dramatic impact on field monitoring applications and business-critical decisions. New and enhanced borehole seismic techniques – especially with DAS time-lapse monitoring – are ready to deliver critical reservoir management solutions for your fields.
Modern oil and gas field management is increasingly reliant on detailed and precise 3D reservoir characterisation, and timely areal monitoring. Borehole seismic techniques bridge the gap between remote surface-seismic observations and downhole reservoir evaluation: Borehole seismic data provide intrinsically higher-resolution, higher-fidelity images than surface-seismic data in the vicinity of the wellbore, and unique access to properties of seismic wavefields to enhance surface-seismic imaging. With the advent of new, operationally-efficient very large wireline receiver arrays; fiber-optic recording using Distributed Acoustic Sensing (DAS); the crosswell seismic reflection technique, and advanced seismic imaging algorithms such as Reverse Time Migration, a new wave of borehole seismic technologies is revolutionizing 3D seismic reservoir characterization and on-demand reservoir surveillance. New borehole seismic technologies are providing deeper insights into static reservoir architecture and properties, and into dynamic reservoir performance for conventional water-flood production, EOR, and CO2 sequestration – in deepwater, unconventional, full-field, and low-footprint environments. This lecture will begin by illustrating the wide range of borehole seismic solutions for reservoir characterization and monitoring, using a diverse set of current- and recent case study examples – through which the audience will gain an understanding of the appropriate use of borehole seismic techniques for field development and management. The lecture will then focus on DAS, explaining how the technique works; its capability to deliver conventional borehole seismic solutions (with key advantages over geophones); then describing DAS’s dramatic impact on field monitoring applications and business-critical decisions. New and enhanced borehole seismic techniques – especially with DAS time-lapse monitoring – are ready to deliver critical reservoir management solutions for your fields.
DSD-INT 2023 RESTCOAST ecotope quantification using D-Eco Impact - CaillibotteDeltares
Presentation by Remi Caillibotte (Egis, France), Benjamin Jacob (Hereon, Germany) and Richard Marijnissen (Deltares, Netherlands) at the Delft3D User Days, during the Delft Software Days - Edition 2023 (DSD-INT 2023). Thursday, 16 November 2023, Delft.
DSD-INT 2018 Hydrodynamic and Water Quality modelization of Cuerda del Pozo r...Deltares
Presentation by Maria Castrillo, Institute of Physics of Cantabria (IFCA), at the Delft3D - User Days (Day 4: Water quality and ecology), during Delft Software Days - Edition 2018. Thursday, 15 November 2018, Delft.
DSD-INT 2019 Emission and water quality modelling with wflow and D-Water Qual...Deltares
Presentation by Hélène Boisgontier, Deltares, at the wflow - User Day (Developments in distributed hydrological modelling), during Delft Software Days - Edition 2019. Friday, 08 November 2019, Delft.
Presentation on 'The Canary Islands: World Laboratory for Water and Energy Technologies' by Gonzalo Piernavieja Izquierdo, R&D&I Director, Canary Islands Institute of Technology, at 2014 UN-Water Annual International Zaragoza Conference. Preparing for World Water Day 2014: Partnerships for improving water and energy access, efficiency and sustainability. 13-16 January 2014.
This presentation was given as part of the EPA-funded Catchment Science and Management Course focusing on Integrated Catchment Management, held in June 2015. This course was delivered by RPS Consultants. If you have any queries or comments, or wish to use the material in this presentation, please contact catchments@epa.ie
It is increasingly being recognised internationally that integrated catchment management (ICM) is a useful organising framework for tackling the ongoing challenge of balancing sustainable use and development of our natural resource, against achieving environmental goals. The basic principles of ICM (Williams, 2012) are to:
• Take a holistic and integrated approach to the management of land, biodiversity, water and community resources at the water catchment scale;
• Involve communities in planning and managing their landscapes; and
• Find a balance between resource use and resource conservation
ICM is now well established in Australia, New Zealand, and the United States. In Europe the ICM approach has been proposed as being required to achieve effective water and catchment management, and is the approach being promoted by DEFRA for the UK, where it is called the “Catchment Based Approach” (CaBA). The principles and methodologies behind ICM sit well within the context of the Water Framework Directive with its aims and objectives for good water quality, sustainable development and public participation in water resource management. In Ireland it is proposed that the ICM approach will underlie the work and philosophy in developing and implementing future River Basin Management Plans.
Harriet LaMair's Presentation at the Cherry Hills Land Preserve Spring Speake...Kathryn Russell
About the Presenter:
Harriet LaMair is a founding member of the High Line Canal Conservancy. She is a former Founder and Executive Director of the Cherry Hills Land Preserve, as well as a Former Councilwoman for Cherry Hills Village. She has a tenure rich in government and public policy experience as well as an unsurpassed passion for building connections between communities and the natural world.
Urban Planning Design Considerations for Better Water Quality, Bill Hunt NC S...Fu Michael Justin
Provided by NC State University
Lead Instructor:
Bill Hunt, PE, Extension Specialist,
Urban Stormwater Management, BAE
208 Weaver Labs, Box 7625
Raleigh, NC 27695-7625
Den brede vinkel
Elliot Gill, ch2m, United Kingdom
Det er ikke kun i Danmark vi tænker over hvordan fremtidens afløbssystem skal se ud. Hvordan gør man i det store udland?
Return to the City of Water: Quantifying Change in the Venetian Canalsvenice2point0
This project addressed the rumors spreading through the city of Venice, Italy regarding an alteration in the canal system. Residents have reported a change of flow and a movement of the watershed that influences the Venetian canals. Development and projects such as MOSE have exacerbated these concerns. This project addressed these rumors by analyzing the change of the canal system through hydrodynamics and tide delay studies.
DSD-INT 2018 Delft3D FM - validation of hydrodynamics (2D,3D) - De GoedeDeltares
Presentation by Erik de Goede, Deltares, The Netherlands, at the Delft3D - User Days (Day 2: Hydrodynamics), during Delft Software Days - Edition 2018. Tuesday, 13 November 2018, Delft.
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
DSD-INT 2023 RESTCOAST ecotope quantification using D-Eco Impact - CaillibotteDeltares
Presentation by Remi Caillibotte (Egis, France), Benjamin Jacob (Hereon, Germany) and Richard Marijnissen (Deltares, Netherlands) at the Delft3D User Days, during the Delft Software Days - Edition 2023 (DSD-INT 2023). Thursday, 16 November 2023, Delft.
DSD-INT 2018 Hydrodynamic and Water Quality modelization of Cuerda del Pozo r...Deltares
Presentation by Maria Castrillo, Institute of Physics of Cantabria (IFCA), at the Delft3D - User Days (Day 4: Water quality and ecology), during Delft Software Days - Edition 2018. Thursday, 15 November 2018, Delft.
DSD-INT 2019 Emission and water quality modelling with wflow and D-Water Qual...Deltares
Presentation by Hélène Boisgontier, Deltares, at the wflow - User Day (Developments in distributed hydrological modelling), during Delft Software Days - Edition 2019. Friday, 08 November 2019, Delft.
Presentation on 'The Canary Islands: World Laboratory for Water and Energy Technologies' by Gonzalo Piernavieja Izquierdo, R&D&I Director, Canary Islands Institute of Technology, at 2014 UN-Water Annual International Zaragoza Conference. Preparing for World Water Day 2014: Partnerships for improving water and energy access, efficiency and sustainability. 13-16 January 2014.
This presentation was given as part of the EPA-funded Catchment Science and Management Course focusing on Integrated Catchment Management, held in June 2015. This course was delivered by RPS Consultants. If you have any queries or comments, or wish to use the material in this presentation, please contact catchments@epa.ie
It is increasingly being recognised internationally that integrated catchment management (ICM) is a useful organising framework for tackling the ongoing challenge of balancing sustainable use and development of our natural resource, against achieving environmental goals. The basic principles of ICM (Williams, 2012) are to:
• Take a holistic and integrated approach to the management of land, biodiversity, water and community resources at the water catchment scale;
• Involve communities in planning and managing their landscapes; and
• Find a balance between resource use and resource conservation
ICM is now well established in Australia, New Zealand, and the United States. In Europe the ICM approach has been proposed as being required to achieve effective water and catchment management, and is the approach being promoted by DEFRA for the UK, where it is called the “Catchment Based Approach” (CaBA). The principles and methodologies behind ICM sit well within the context of the Water Framework Directive with its aims and objectives for good water quality, sustainable development and public participation in water resource management. In Ireland it is proposed that the ICM approach will underlie the work and philosophy in developing and implementing future River Basin Management Plans.
Harriet LaMair's Presentation at the Cherry Hills Land Preserve Spring Speake...Kathryn Russell
About the Presenter:
Harriet LaMair is a founding member of the High Line Canal Conservancy. She is a former Founder and Executive Director of the Cherry Hills Land Preserve, as well as a Former Councilwoman for Cherry Hills Village. She has a tenure rich in government and public policy experience as well as an unsurpassed passion for building connections between communities and the natural world.
Urban Planning Design Considerations for Better Water Quality, Bill Hunt NC S...Fu Michael Justin
Provided by NC State University
Lead Instructor:
Bill Hunt, PE, Extension Specialist,
Urban Stormwater Management, BAE
208 Weaver Labs, Box 7625
Raleigh, NC 27695-7625
Den brede vinkel
Elliot Gill, ch2m, United Kingdom
Det er ikke kun i Danmark vi tænker over hvordan fremtidens afløbssystem skal se ud. Hvordan gør man i det store udland?
Return to the City of Water: Quantifying Change in the Venetian Canalsvenice2point0
This project addressed the rumors spreading through the city of Venice, Italy regarding an alteration in the canal system. Residents have reported a change of flow and a movement of the watershed that influences the Venetian canals. Development and projects such as MOSE have exacerbated these concerns. This project addressed these rumors by analyzing the change of the canal system through hydrodynamics and tide delay studies.
DSD-INT 2018 Delft3D FM - validation of hydrodynamics (2D,3D) - De GoedeDeltares
Presentation by Erik de Goede, Deltares, The Netherlands, at the Delft3D - User Days (Day 2: Hydrodynamics), during Delft Software Days - Edition 2018. Tuesday, 13 November 2018, Delft.
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
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.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
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.
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
Quality defects in TMT Bars, Possible causes and Potential Solutions.PrashantGoswami42
Maintaining high-quality standards in the production of TMT bars is crucial for ensuring structural integrity in construction. Addressing common defects through careful monitoring, standardized processes, and advanced technology can significantly improve the quality of TMT bars. Continuous training and adherence to quality control measures will also play a pivotal role in minimizing these defects.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
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.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Student information management system project report ii.pdf
Iber wq gi d convention
1. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com
Modelling Water Quality in rivers and
estuaries with Iber
Luis Cea, Maria Bermúdez, Ernest Bladé, Ignacio Fraga, Georgina
Corestein, Marcos Sanz
Barcelona, 1st June 2016
1
Introduction Water Quality Problemtype Conclusions
2. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com
IBER. THE MODEL
Capabilities
Simulation of free surface flow in rivers and estuaries
Assessment of flood areas. Calculation of main flow zones.
Hydraulic calculation of open channel networks.
Simulation of tidal currents in estuaries.
Sediment transport: erosion and sedimentation
Flood risk analysis
Water Quality
Introduction Water Quality Problemtype Conclusions
3. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com
Turbillon CARPA
ANTECEDENTS
Introduction Water Quality Problemtype Conclusions
4. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com
2D Shallow Water Equations
yx
2 2
x y b,xbx x x x
t t
2 2
y x y y b,y y yb
t t
qqh
0
t x y
q q τzq q U Uh
g gh ν h ν h
t x h 2 y h x ρ x x y y
q q q q τ U Uzh
g gh ν h ν h
t x h y h 2 y ρ x x y y
Solution: FINITE VOLUME METHOD
Numerical scheme: High resolution Godunov Method based on Roe
Approximate Riemann Solver
Mesh: non-structured triangles and quadrilaterals
THE BASE: HYDRODYNAMICS
Introduction Water Quality Problemtype Conclusions
5. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com
Fully integrated in GiD and customized to
obtain a unified environment.
Uses GiD standards.
Include general data, boundary conditions and
materials.
Specific tools
THE INTERFACE
Introduction Water Quality Problemtype Conclusions
6. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com
Introduction Water Quality Problemtype Conclusions
7. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com
The water quality module in Iber
• The water quality module has been developed to calculate the evolution in
time and space of pollutants in non-stratified rivers and estuaries.
• For that purpose, a depth averaged 2D advection-diffusion equation is solved
for each of the considered substances.
• This equation includes source and sink terms and reactive terms to model the
interactions and transformations between different substances.
•
• User chooses number variables and assigns boundary and initial conditions.
• Point discharges con also be introduced.
7
Introduction Water Quality Problemtype Conclusions
8. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com
The water quality module in Iber
• In the present version, the following variables and substances are
included::
Salinity
Temperature
Coliforms (bacteriological contamination)
Oxygen (Dissolved Oxygen and Carbonaceous Biochemical Oxygen Demand)
Nitrogen (Organic, Ammonia and Nitrates)
• New substances in future implementations
8
Introduction Water Quality Problemtype Conclusions
9. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com
Water quality module scheme
9
Organic Nitrogen
Dissolved oxygen
Nitrates/Nitrites
Ammoniacal
nitrogen
Temperature
CBOD
Temperature
Biodegradation
Ammonification
Nitrification
Denitrification
Reaeration
Sediment
oxygen
demand
Sedimentation
Sedimentation
Salinity
E. Coli
Radiation
Degradation
Turbidity
Salinity
Temperature
Introduction Water Quality Problemtype Conclusions
10. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com
t
x y i C
j c,t j
ν C
h C h U C h U C h Γ S
t x y x S x
The advection-diffusion equation
• For each substance, the depth averaged advection-diffusion transport
equation is solved:
10
Temporal variation
of depth averaged
concentration
Transport by advection
Velocity and depth are
obtained from the
hydrodynamic module of Iber
Diffusive transport
Turbulent viscosity is
obtained from the
turbulence module of Iber
Reactive
and source
terms
• The result of this equation is the depth averaged concentration (C)
Introduction Water Quality Problemtype Conclusions
11. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com 11
• Evolution of salinity in an estuary in Galicia (Lombos del Ulla)
Example. Salinity
Introduction Water Quality Problemtype Examples
12. Tema 1. Introducción
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• Evolution of salinity in an estuary in Galicia
Example. Salinity
Introduction Water Quality Problemtype Examples
Q=120 m3/s
Salinity = 0 g/l
13. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com 13
Example. Temperature
• Temperature distribution in the junction of two rivers (Ebre-Segre)
Introduction Water Quality Problemtype Conclusions
14. Tema 1. Introducción
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Example BOD
• Bacteriological contamination in an estuary due to point discharges. Bath
and fishing areas can be delimited (Ferrol)
Introduction Water Quality Problemtype Conclusions
15. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com
Problemtype through a Case Study. Bacteriological
contamination in Carmarthen bay
15
bathimetry
• Time evolution of
the dispersion of
four point
discharges.
Introduction Water Quality Problemtype Conclusions
16. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com 16
Hydrodynamics
Introduction Water Quality Problemtype Conclusions
17. Tema 1. Introducción
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Hydrodynamics
• Surface generation, assignation of water elevation evolution (tide) in open
boundary
Introduction Water Quality Problemtype Conclusions
18. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com 18
Water quality. Initial conditions
• Initial conditions.
Introduction Water Quality Problemtype Conclusions
19. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com 19
Water quality. Boundary conditions (open boundary)
Introduction Water Quality Problemtype Conclusions
20. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com 20
Water Quality. Boundary conditions (discharges)
Introduction Water Quality Problemtype Conclusions
21. Tema 1. Introducción
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Water Quality. Boundary conditions (discharges)
Introduction Water Quality Problemtype Conclusions
22. Tema 1. Introducción
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Mesh generation
• Irregular mesh
Introduction Water Quality Problemtype Conclusions
23. Tema 1. Introducción
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Mesh generation
• Smooth transition:
– Automatic correct sizes: Normal
– Unstructured size transitions = 0.1
– Regular transitions near boundary: NO
• 21.000 elements
Introduction Water Quality Problemtype Conclusions
24. Tema 1. Introducción
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Water quality. Problem Data
Introduction Water Quality Problemtype Conclusions
25. Tema 1. Introducción
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Results: Hydrodynamics
P1
P2
P3
Introduction Water Quality Problemtype Conclusions
26. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com
Resultados
• Coliforms evolution
Introduction Water Quality Problemtype Conclusions
27. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com 27
Results
• Temporal series
Point
coordinates
Graph window
Introduction Water Quality Problemtype Conclusions
28. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com 28
Results
• Temporal series
Introduction Water Quality Problemtype Conclusions
A
B
C
29. Tema 1. Introducción
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Resultados
• Export temporal series.
Introduction Water Quality Problemtype Conclusions
30. Tema 1. Introducción
Copyright. CIMNE – UdC - UPC. Todos los derechos. www.iberaula.com 30
Results
• Concentration peaks in point A are immediately after low tide, as exiting
tides propagate discharge V2 towards point A.
• Coliform peaks take place during the night, when solar radiation is null.
During the day the coliforms degradation rate is higher due to solar
radiation and concentration decreases rapidly.
Introduction Water Quality Problemtype Conclusions
A
V2
31. Tema 1. Introducción
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CONCLUSIONS
The interface of Iber, based on GiD, is user friendly, flexible and of great
value for results interpretation.
Iber’s water quality module has been implemented to solve the
advection-diffusion equation for the most common pollutant
substances
The module has proved to bee a useful tool for real engineering
problems
The interface is user friendly thanks to GiD’s flexibility and capabilities.
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Introduction Water Quality Problemtype Conclusions
