Hi! I have some questions about the Green-Ampt equation.
What does exactly the head (or suction head) mean in this equation? I get confused here and can't find a good explanation. I found one equation of head online, but not clear why it is expressed
Read more…Hi! I have a question about runoff. Since this model can't model pollutant reduction benefits from LID, I want to calculate it using EMC by myself. I'll use equation L=EMC*Q, where EMC is mg/m3, Q is m3/day. But the runoff modeled from SWMM is m3/s a
Read more…Pittsburgh was once described as Hell with the lid off. Well, whoever said that was an idiot.posted on August 3, 2013 at 12:28pm EDT
Hi I'm new to SWMM and a linux user. I was wondering if there might be binaries available online? Or in general how a linux user goes about using SWMM without building from source
Read more…Dear all,
I would like to ask whether there is an open source tool for SWMM allowing for automatic design of pipe diameters in SWMM similar to that provided by DHI within Mike Urban.
Thank you very much.
Christoph
Read more…I'm attempting to use the add-in tools capability within SWMM5 to extract data from the binary output file using the $OUTFILE macro. However, the temporary SWMM output file passed to the external program is still in use by EPASWMM5.exe and is therefo
Read more…Hello,
I have just started using SWMM5 and I am having troubles trying to run a steady-state simulation. If I understood correctly, the 'steady-state' option only has to do with the conduit routing method. The simulator still needs a user-defined peri
Read more…Hi! I got the hourly runoff results from model and the unit is CMS. Now I want to calculate the pollutant load in the runoff. Normally the unit of the load is kg/ha/yr, but I only have hourly runoff data and unit is cubic meters per second. I don't k
Read more…Hello everybody, I am new in this forum and in first place I want to thank all people that make this possible.
About my question, I am working with EPA SWMM and I need to use a hotstart file for fist time. I know that I can generate a hotstart file (t
Read more…Dear all,
I have problems with running surface runoff and pipe flow simulations separately. I.e., I run first a (long term) runoff calculation and yield a runoff, i.e. .rof-file. In a second step, I run a pipe flow simulation for certain shorter perio
Read more…Hi Everyone,
I was wondering if anyone has had any experience with SWMM5/InfoSwmm compatibility. I have had someone export several input files from InfoSwmm for use in SWMM5. Generally everything works quite well. However time pattern information (for
Read more…Hi! What is the suction head at the wetting front for Green Ampt equation? I couldn't find the detailed information about it online. In addition, normally what's value of it? How can I determine it?
Read more…What should be the optimum range for External and Internal outflow for SWMM 5.0 result ?
Is there any book available for understanding EPA SWMM 5.0 applications and basic concepts/mechanism apart from the User and Application manual ?
Read more…hi..everyone....how can i model a vacuum sewer system using SWMM...
please i will need a detail explanation cos i am just learning to use the software
Read more…Lightscapes is an experimental work by London-
These Visual Studio Dependency Diagrams were done in Visual Studio 2012
I have develop a event based model to analyze the sensitivity of the channel parameters (Bed and Bank Roughness coefficient, Bed width, Maximum Depth) and the sensitivity of the intermittent storage areas. According to the results, sensitivity values
Read more…I used simple schematic to check the mass balance of the model. When I change the channel bed width, outflow hydro-graph peak was reduced but no time lag of the peak. I have found there is a system loss by internal outflow and due to that, I couldn
Read more…Hello Mr. Dickinson.
I write because I am having a little problem with a little software in which I am making for VBA to get SWMM results. I am getting the SWMM .out information by the GetSwmmResult(a, b, c, i, q) function.
for the case of (a,b,c):
Read more…I'm getting a strange HGL for a fairly simple run. Just running the flow routing module with an external inflow. Using Dynamic Wave with a 1 second time step, 15sec conduit lengthening time step, both normal flow limits. Why would manhole PL120 not b
Read more…