I am modeling a small (<1acre) pervious area and running continuous simulations of ~ 2yrs to check the impact of various depression storage values. Based on the SWMM manual and other sources I assumed the total runoff and outflow would be…
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Hello,
I don't know if I've missed something, but I've been trying to plot two time series in a single plot (precipitation and runoff) in EPA SWMM5, but I cannot find how I can reverse one y-axis (for the precipitation) so that I have bars…
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hello all.i run a model of 41 sub catchments and want to see the runoff Peaks from 24 years simulated rainfall data.finally i got two sub catchs(S80 & S81) result around 4cms.and i had to do LID placement in both catchs and i do place 4…
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hello all.i run a model containing 41 sub catchments and want to see the runoff Peaks from 24 years simulated rainfall data.finally i got two sub-catchs(S80 & S81) result around 4 cms and i had to do LID placement in both catchs and i do…
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Hi there,
Very new SWMM user here. Interested in defining some LID Controls so I can select them for my subcatchments in the drop down menu in the editor.
It seems I need to first define the Controls and how they are routed…
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Hello all,sir!.i have been tried so hard with the data input of a historical rainfall data INTO times series USER DEFINED GRID of EPA SWMM5.1, but i keep getting the ERROR telling me "time out of order" in which I have a daily rainfall data…
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Rule 1
IF SIMULATION TIME >= 0
THEN ORIFICE UnderdrainPipe SETTING = 0
PRIORITY 1
Rule 2
IF NODE GravelSU DEPTH > 0.6
THEN ORIFICE Backtosoil SETTING = 1
ELSE ORIFICE Backtosoil SETTING = 0
PRIORITY…
I am currently attempting to model in SWMM Stormtech chambers as a subsurface pond/storage unit connected to a surface pond with a higher stage. How do I cap off the underground system so water will not pond higher than the top of my chambers?…
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I want to use 3-hour rainfall data from 12-01-2002 to 05-31-2010 for my rain gage, but every time I ran the model, it always appears error 321 no data in rainfall interface file for gage or error 319 invalid format for rainfall interface file.…
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Here are a few example files for SWMM 5 along with associated blogs:…
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Hello,
I am modelling Green roofs as LIDs. Each subcatchment represents about 40 hectares of urban area. The current situation (without Green Roofs) is that 80% of the total area is Imprevious and 20% is pervious. When I include the Green…
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Read more…What is this purpose of this discussion:
Zipped File for SWMM 5.1.012 for those who cannot install SWMM 5 on their…
