EFDC (Environmental Fluid Dynamics Code)
Environmental Fluid Dynamics Code (EFDC) is supported by US EPA. The description and history of this code can be found in its EPA website.
I have used this code to do some research on the water quality management of the Chicago River, IL, and other places.
Work with EFDC includes:
- Adapt the water quality model for the Chicago River, add detailed model for the deposition and resuspension of particulate matter
- Develop some tools to make the use of the code more friendly and the calibration process faster. These tools include pre-processing and post-processing
- Parallelization of the code using OpenMP
Chicago River Study
Location of the Chicago River
Segmentation of the Chicago River
Density Current Induced by Combined Sewer Overflow (CSO) Events
ADCP Uplooker measurement at the upstream of the junction shows density current due to CSO events.
CSO Event of 01/08/2008
CSO Event of 02/17/2008
Flow Structure at Junction
The following figure shows the flow structure at the junction of the Bubbly Creek and the South Branch at the beginning of a CSO event. Notice the intrusion of the dense CSO flow upstream and into the ship slips.
Density Current Animation
Animation showing the density current in the South Branch during a CSO event:
