Thursday, July 19, 2012

How to Subdivide Subcatchments in SWMM 5

Subject:   How to Subdivide Subcatchments in SWMM 5

How to Subdivide Subcatchments in SWMM 5

by dickinsonre
Subject:   How to Subdivide Subcatchments in SWMM 5

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

No comments:

Emoji EPANET2.2 Reference Table

  Author(s) Year Title Emoji Bhave 1991 Analysis of Flow in Water Distribution Networks 📘 Clark, R.M. 1998 Chlorine demand and Trihalometha...