What is EPA Swmm used for?

EPA’s Storm Water Management Model (SWMM) is used throughout the world for planning, analysis, and design related to stormwater runoff, combined and sanitary sewers, and other drainage systems.

What is the difference between SWMM and Pcswmm?

PCSWMM works with all implementations of SWMM, historical and up to SWMM44GU. PCSWMM requires no additions or hooks or special code in the SWMM source. PCSWMM results are unadulterated SWMM results. It is thus useful for comparing results of many versions.

What is XP SWMM?

XP-SWMM is a collection of computer programs that simulate rainfall-runoff processes in urban watersheds in addition to the transport of the runoff through pipes and channels. RUNOFF for determining flow generated from rainfall in a defined watershed or catchment.

How do you find the width of a SWMM?

An initial estimate of the characteristic width is given by the subcatchment area divided by the average maximum overland flow length. The maximum overland flow length is the length of the flow path from the outlet to the furthest drainage point of the subcatchment.

Who developed Swmm?

Table 1. SWMM History

What are the different measurement unit used in Swmm?

If you are using flow units of CFS, GPM or MGD then the length units are always feet and if you are using flow units CMS, LPS or MLD the length units are meters in any dialog.

What does Pcswmm stand for?

PCSWMM. Personal Computer Storm Water Management Model. Computing.

What is Swmm width?

Basically, Width=area/(ave. flow length along runoff flow path). Venant or Manning’s equation will dictate the flow, and thus the reservoir runoff model of SWMM and hence its parameters will not play a role.

What is overland flow length?

From the sketches of Figure 7-10 it should be clear that the overland flow length is the distance from the boundary of the idealized rectangle to the drainage conduit (pipe or channel).