Table of contents
Topic 1. Software Installation
Topic 2. Explanation of EFDC model
Topic 3. One-dimensional river simulation practice
Topic 4. Modeling pre-processing
Topic 5. Introduction to EFDC Meshing
Topic 7. EFDC Water Quality Model Parameters and Principles Introduction
Topic 8. EFDC 1, 2, 3D Lake and Reservoir Water Quality Simulation
Topic 9. Case study of surface water environmental impact assessment based on EFDC
Topic 10. Case study of surface water source division based on EFDC
Topic 11. Case explanation of sewage outfall demonstration based on EFDC
Topic 12. Explanation of EFDC source code
In order to quantitatively describe the dynamic relationship between surface water environmental quality and pollution discharge, numerical models such as EFDC, MIKE, Delft3D, and Qual2K are widely used in many fields such as environment, water affairs, and oceans. Environmental Fluid Dynamics Code (EFDC) is a general model package for simulating 3D flow, solute transport, and biochemical processes in rivers, lakes, estuaries, reservoirs, wetlands, and offshore surface water systems. The EFDC model was originally a public domain software developed by John Hamrick et al. of the Virginia Institute of Marine Science (VIMS), College of Oceanography, University of William and Mary (Hamrick, 1992). With the support of the U.S. Environmental Protection Agency (EPA), EFDC has become an important member of the recommended model family of the Total Maximum Daily Loads (TMDLs), and is increasingly favored by domestic researchers. It has been applied in research on the properties of water and sand, environmental impact assessment planning, etc. EFDC is a free and open-source numerical model with hundreds of related parameters, but currently there are few introductions and examples related to EFDC, and even fewer Chinese books. For beginners, it is difficult to quickly grasp and apply EFDC to solve practical problems; in addition , because EFDC is free and open source, it is still in the semi-mature stage, and a lot of practical experience is needed in the use process.
Time and place: July 14-17 [Sichuan * Chengdu]
Expert: Dr. Qi, who has long been engaged in water environment simulation, surface water environmental impact assessment, sewage outlet setting demonstration and other related work, has rich practical experience in EFDC application.
Objectives:
1. Master EFDC model installation and modeling methods (please bring your own computer and install the required software)
2. Master modeling pre-processing and meshing methods
3. Master the practical operation method of one-dimensional river simulation through case operations
4. Master EFDC two-dimensional lake reservoir hydrodynamic simulation/non-conservative dye simulation, EFDC three-dimensional lake reservoir water quality simulation method
5. Master EFDC model in surface water environment impact assessment, surface water source division, sewage outlet demonstration, water environment capacity Applications in fields such as computing
Topic 1. Software Installation
1. EFDC installation
2. EFDC-Explorer installation
3. Delft3D installation
4. Google Earth installation
Topic 2. Explanation of EFDC model
1. Explanation of EFDC model
2. Explanation of EFDC-DSI model
3. Scope of application of EFDC
4. Explanation by modeling method
Topic 3. One-dimensional river simulation practice
1. One-dimensional river grid division
2. One-dimensional river initial condition setting
3. One-dimensional river boundary condition setting
4. One-dimensional river hydrodynamics and Dye simulation
Topic 4. Modeling pre-processing
1. Learn how to obtain the map background
2. Learn to register the background
3. Draw the lake shoreline
4. Survey and digitize the riverbed topography
5. Extract the shoreline based on Google Maps
6. Practice registration and shoreline extraction
Topic 5. Introduction to EFDC Meshing
1. Familiar with the meshing tool CVLGrid
2. Use CVLGrid to divide orthogonal curve grids
3. Use Delft3D to divide orthogonal curve grids
4. Practice drawing one-dimensional grids
5. Practice drawing two-dimensional grids
Topic 6. EFDC two-dimensional lake and reservoir hydrodynamic simulation/non-conservative dye simulation
1. Two-dimensional lake reservoir grid construction2
. Two-dimensional lake reservoir initial and boundary condition setting3
. Two-dimensional hydrodynamic setting and simulation4
. Two-dimensional hydrodynamic results viewing5
. Two-dimensional conservative and non-conservative dye simulation6
. 2D water age simulation
Topic 7. EFDC Water Quality Model Parameters and Principles Introduction
1. Introduction to EFDC water quality parameters
2. Introduction to the principle of EFDC water ecological dynamics
Topic 8. EFDC 1, 2, 3D Lake and Reservoir Water Quality Simulation
1. One-dimensional river COD and DO simulation
2. One-dimensional river ammonia nitrogen and nitrate nitrogen simulation
3. Two-dimensional lake temperature simulation
4. Three-dimensional lake water quality setting and simulation
5. EFDC three-dimensional water quality results viewing
6. Three-dimensional water quality simulation results output
Topic 9. Case study of surface water environmental impact assessment based on EFDC
1. Interpretation of surface water environmental impact assessment specifications
2. Case analysis of surface water environmental impact assessment
3. Surface water environmental impact assessment case modeling data preparation
4. Hydrodynamic simulation and verification
5. COD simulation and verification
6. River water environmental capacity measurement
7. River governance Scenario Analysis of Pollution Planning
8. Sensitivity Analysis of Pollution Source Discharge
Topic 10. Case study of surface water source division based on EFDC
1. Interpretation of surface water source area division norms
2. Water source area case grid division
3. 3D hydrodynamic simulation and verification
4. 3D water temperature simulation and verification
5. 3D water quality simulation and verification
6. Multi-scenario simulation of water source area division scheme
7. Analysis of Simulation Results of Partition Scheme
Topic 11. Case explanation of sewage outfall demonstration based on EFDC
1. Introduction to the operation method of EE10 software 2.
Introduction to new functions of EE10
3. Interpretation of the sewage outlet demonstration specification
4. Three-dimensional model grid division
5. Survey requirements for the basic data of the sewage outlet
6. Hydrodynamic modeling of the sewage outlet case
7. COD of the sewage outlet Simulation and verification
8. Simulation calculation of contribution of multiple sewage outlets
9. View of calculation results of sewage outlets
Topic 12. Explanation of EFDC source code
1. EFDC source code introduction
2. Source code compilation
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