Subject: How to Subdivide Subcatchments in
If you want to subdivide a larger Subcatchment in SWMM 5 and get around the same peak flow then a good suggestion would be to make sure that (Figure 1):
1. The sum of the new areas equals the original Subcatchment Area and
2. The sum of the total Width values equals the original Subcatchment Width on the one Subcatchment
3. The infiltration, percent imperviousness, roughness and depression storage should be the same.
Figure 1. Subdividing a Subcatchment
Thursday, July 19, 2012
How to Subdivide Subcatchments in SWMM 5
Subject: How to Subdivide Subcatchments in SWMM 5
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