SWMM5 - Stormwater Management Model
SWMM 5, Watersheds, Water Quality,Hydrology, Hydraulics - Watersheds
SWMM 5 Variable Time Step
SWMM 5 Variable Time Step
In the SWMM 5 Simulation Options/Dynamic Wave Options is the Variable Time Step Frame which contains the Adjustment Factor Percentage. The Adjustment Factor is a multiplication factor for the Courant-Friedrichs-Lewy (CFL) condition.
Plot of time step in conjunction with Total Inflow
The effiect of changing the Adjustment factor can be seen in the following graph. As the value of the adjustment factor changes from 75 to 50 to 25 the time step used in the program decreases because the time step gets further away from the CFL time step condition.
Last updated by Robert E Dickinson Dec. 25, 2008.
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Hi,
Thanks a lot and I will be working on it.
Thanks again for your effort.
Upaka
Yes, you can add a Dry weather flow concentration to a node in SWMM 5. 1st you make a pollutant, then go to a node and add DWF and a pollutant concentration. The load - flow * concentration will go into the network.
Hi,Is it possible to add a pollutant concentration (eg. TSS = 20 mg/L) to a node at a network in SWMM?
Thanks a lot
Saving U.S. Water and Sewer Systems Would Be Costly
By CHARLES DUHIGG
WASHINGTON — One recent morning, George S. Hawkins, a long-haired environmentalist who now leads one of the largest and most prominent water and sewer systems, trudged to a street…
If you a lead and lag pump connecting the same upstream and downstream
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