RDII Components at a node for a 100 year simulation in SWMM 5
Introduction: This set of blogs uses the 1000 year rainfall/runoff/hydraulics model that you can download at http://swmm2000.com/forum/topics/1000-year-simulation-with-rainfall-in-swmm-5 to show the inner workings of SWMM 5 and by extension InfoSWMM and H2oMap SWMM using a QA/QC version of SWMM 5 with extended graphics. I always hope that seeing the inner workings of a SWMM 5 feature helps to understand the code, sensitivity and importance of a parameter. It also helps show sometimes when a parameter is not important. In this example, we show some of the internal working of the RDII estimation for SWMM5. Discussion: There are nine main parameters for estimating RDII in SWMM 5: 1. Slow response or R1, T1 and K1 2. Medium response R2, T2 and K2 3. Fast Response or R3, T3 and K3 4. The RDII fl...