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Elevation info into subcatchments from backdrop file
Hi i have read the SMWW apps manual. This is a picture from that. Im using a map from autocad as a backdrop image. I have drawn my subcatchments on the area and everything looks fine except that I want the elevation info from the area like the pictu
Read more…Metafile from autocad use in SWMM, 2 important questions plz answer
Hi
I have made a 3D map in autocad civil 3D. I saved it as a metafile so SWMM can read it. In SWMM i want to simulate rain and calculate the stormwater flow.
My question is when i open the metafile in SWMM i cant see if its still 3D or just 2D. does t
Read more…Total Precipitation does not match sum of precipitation in input file
The total precipitation in inches reported in the EPA SWMM Status Report (9.075-in) does not match the sum of precipitation data in my input file (15-minute time steps). The starting and ending dates match, and continuity error is < 1%. Any ideas a
Read more…Aquifer in SWMM
does anybody here know well about Aquifer-Module in SWMM 5? which algorithms are used to model subsurface processing (aquifer)? thanks
Read more…EPA SWMM 5 to produce flood hazard map
Hi..i'm student from Malaysia who taking remote sensing course...i'm planning to produce flood hazard map by using EPA SWMM 5 simulate the flood depth and inundation..then import these data to GIS software such as ArcGIS and used landsat image as bas
Read more…100 Incredible Views Out Of Airplane Windows - From Buzzfeed
100 Incredible Views Out Of Airplane Windows
CULTURE BUZZ Inspired by Andrew Sullivan’s airplane window picture series, here's a very large collection of awesome pictures taken out of airplane windows. I need to go on a vacation. http://www.buzzfee
effect of BMPs on Q peak
Hi,
I have modeled porous pavement with regard to 2 scenarios. In the first scenario I examined the effect of increase the flow (Q peak) on the BMP efficiency. The results showed that the efficiency was decreased when flow increased. That’s ok. But in
Read more…modeling reservoir
Hi,
I have modeled 4 reservoirs for the purpose of controlling peak flow. The total depth of flow in reservoirs decrease in approximately 24 hours. I expected that after modeling reservoir, lag time happen for the time to peak. But unfortunately the o
Bangkok Underwater
Bangkok Underwater
| OCT 26, 2011 | |
Heavy monsoon rains have been drenching Southeast Asia since mid-July, causing mudslides and widespread flooding. The deluge has now reached Bangkok, with rising water and associated problems affecting
Writing results to an external file
Hi,
I have linked SWMM 5.0 with an optimization module and using C++.
I wanted to print some results from the simulation to an external text file.
I've used the following codes, however, I can't get the results printed. Instead of that I am just gett
Read more…Usage of control rules
Hi,
This is about the control rules.
I am trying to simulate a network with the help of control rules.
Total simulation period is 2 hrs and 30 minutes, however, I'm running the simulation part by part. Eg 0 to 15 minutes, 15 to 30 minutes, 30 to 45 minu
Read more…link Matlab to SWMM5
i would like to link Matlab to SWMM 5 in order to automate the calculate processing (like sensibility analyze etc.). For these option must the Input and Output File be readable for Matlab. As we known is the simulation result by SWMM 5 saved as binar
Read more…Variable for orifice height
Hi,
I want to include a variable to the orifice height of my network and I tried to implement this through the source codes of SWMM 5.0. I am looking a particular function to do this.
Please look at the following example.
Manning´s roughness coefficie
Read more…
Sewer network analysis with River stage changes
I want to model a combined sewer network which is connected to a river through a flap gate. What will be the best way to input rover with the flap gate? Outfall or Outlet?
Is it possible to analyze the network with river stage changes dynamically rath
Read more…HRT
Hi:
I am wodering how the HRT is being calculated in the treatment expression (e.g. C= NH4*exp(-0.004*HRT).
Thanks!
Read more…Continuity Error "Flow Routing"
Hi
After run simulation, I got the continuity Error "Surface Runoff" is 1.70% and "Flow Routing" is 17.83%. I want to reduce error of flow routing then I have done manys thing that state in SWMM Help but It's not work.
Please advise me, how to do
Read more…sensitivity to slope
In running some basic long-term continuous simulations I’ve noticed that SWMM output may not be very sensitive to the slope subcatchment parameter. For instance, I ran two simple continuous SWMM5 models with over 50-years of hourly rainfall data and
Read more…Batch Analysis in EPA SWMM
I want to develop a extension for EPA SWMM for Batch Analysis can any body tell me how useful it will be
Read more…Problem about inlet
Hi everybody
I have question about junction in SWMM
If I have different type of inlet (different type of manhole cover or street inlet),
how can i define them in SWMM?
Thank you very much
Rawit
Read more…