Unit Hydrographs (UHs) estimate rainfall-dependent inflow/infiltration (RDII) into a sewer system. A UH set contains up to three such hydrographs, one for a short-term response, one for an intermediate-term response, and one for a long-term response. A UH group can have up to 12 UH sets, … Read the rest
A Toolbox for Sanitary Sewer Overflow Analysis and Planning (SSOAP) and Applications
Fu-hsiung Lai1, Srinivas Vallabhaneni2, Carl Chan2, Edward H. Burgess3, Richard Field1
1U.S. Environmental Protection Agency, National Risk Management Research Laboratory,
Urban Watershed Management Branch, 2890 Woodbridge Avenue (MS-104), Edison, NJ
2Camp Dresser & McKee, Inc., Indianapolis, IN
3Camp … Read the rest
United States Office of Research EPA/600/R-08/010
Environmental Protection and Development January 2008
Agency Washington, DC 20460
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EPA/600/R-08/010 January 2008
By
Fu-hsiung (Dennis) Lai… Read the rest
Step 9: Export Results to InfoSWMMand InfoSWMM SA
In this section, you will export the hourly DWF patterns created for weekdays and weekend, the groundwater inflow time series and the RTK parameters to InfoSWMM and InfoSWMM SA. The exported data would be assigned to the nodes that contribute flow to … Read the rest
Step 8. Calibrate the RTK Hydrograph Parameters
Automated calibration is another powerful tool that RDII Analyst offers. The calibration tool identifies optimal parameters of the RTK hydrograph to match the RDII flow simulated by InfoSWMM H2OMAP SWMM with the RDII time series identified by RDII Analyst using the decomposition process … Read the rest
Steps for Running RDII Analyst in H2OMap SWMM
Step 1. Create the RTK UH in the H2OMap SWMM Attribute Browser (AB)
Step 2. Assign the RTK UH to a node (you need one node at least to Run RDII Analyst).
Step 3. Open up RDII Analyst and Set up the … Read the rest
Subject: Convolution of the RDII UH from R, T and K in SWMM 5
The convolution uses the value of R and the Time Base to estimate the amount of Infiltration and Inflow in the Sewer Network. The short, medium and long term UH's are estimated at each Wet … Read the rest