SWMM5, InfoSWMM

SWMM5 Groundwater Flow Components

Note: There are three sub flow components in the calculation of the groundwater flow from a SWMM 5 Subcatchment.

1^st Component: Flow = Groundwater Flow Coef. * (LowerDepth – Aquifer Bottom to Node Invert) ^ Groundwater Flow Exponent

2^nd Component: Flow = SurfaceWater Flow Coef. * (Aquifer Bottom to Water Surface – Aquifer Bottom to Node Invert) ^ SurfaceWater Flow Exponent

3^rd Component: Flow = SurfaceWater-Groundwater Flow Coef. * (Aquifer LowerDepth * Aquifer Bottom to Node Invert)

The total flow is the sum of all three components.

A SWMM 5 Aquifer has a Saturated and Unsaturated Zone

Note: The unsaturated upper zone soil moisture varies between the initial upper zone moisture fraction to the porosity fraction for the soil. The soil moisture content is for the SWMM 5 Aquifer which can cover more than one Subcatchment in your simulation network.

InfoSWMM and H2oMAP SWMM Map of the Maximum Surcharge Depth Over Highest Pipe Crown

Note: You can copy and paste information from the Junction Output Summary to a newly created Junction Information DB Column so that you can use Map Display to visually see the newly saved output variable.

Step 1: Run the model and then go to the Junction Summary in Report Manager and select all of the nodes in your model.

Step 2: Copy the Maximum Surcharge Height over Highest Pipe Crown Column

Step 3: Make and Insert a New Editable Field in the Junction Information Table by Pasting the information you just copied from the Junction Summary Output Column.