The Internal Green Ampt Parameters, FUMax, FU and FTOT or F for a 100 Year SWMM 5 Simulation for Green Ampt Infiltration
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 Green Ampt Infiltration Parameters over the 100 year period. Discussion: Key internal parameters for Green Ampt infiltration are FUMax is the Saturated Moisture Content of the Upper Zone (internal units of feet) F or FTOT in the graph is the Cumulative event infiltration at start of time interval (internal units of feet) FU i...