#INFOSWMM

How to Tell how Long Normal Flow is used in a Link in #InfoSWMM, H2OMap SWMM w/ #SWMM5

 

How to Tell how Long Normal Flow is used in a Link in #InfoSWMM, H2OMap SWMM  w/ #SWMM5

Find the Fraction of Normal Flow Limited in the Flow Classification  Table and copy it to the Link Information Table – the value of FLM can then be Displayed in a Map using  the Map Display command.  In this small example, three links primarily used normal flow and one uses it for a short time. Normal flow only uses the Manning’s equation and the link upstream depth, hydraulic radius and cross sectional area to compute the flow.

 

 

St. Venant equation solution – this is the link attribute data used when the St. Venant Equation is used in #SWMM 5. Simulated Parameters from the upstream, midpoint and downstream sections of the link are used.

Normal Flow Equation – this is the link attribute data used when the Normal Flow Equation is used in #SWMM 5. Only simulated parameters from the upstream end of the link are used if the normal flow equation is used for the time step.

 

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