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Permalink Reply by Robert Dickinson on October 6, 2011 at 8:32am

I am not sure what you are trying to model here.   Do you want to have an orifice in your subcatchment? You can also send the runoff from the subcatchment to a node connected to an orifice so that the orifice controls the flow.  

 

Yes, x[1] is the Manning's coefficient for the Subcatchment.

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Permalink Reply by Upaka on October 6, 2011 at 8:40am

I am sorry, I think I didn't really explain the things. I just took an example for a subcatchment and showed the function. Likewise, I need to include a variable to the orifice height. 

 

Let me explain the things like this. I have a sewer network and I wanted to control optimally the sewer network. To do that, I am controlling the orifice heights. The optimization module that I am using is dealt with the genetic algorithms and I wanted to keep this orifice height as a variable, which is going to be decided by the optimization module. 

 

There, I wanted to find a function which represent the orifice height and then I can include a variable to this height. I have gone through "link.c" but couldn't understand a correct function.

 

Hope you understood it now. I've just used the manning's coeffcient in the above text to explain this and no relevance to the work that I am doing.

 

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Permalink Reply by Robert Dickinson on October 6, 2011 at 8:58am

The orifice height is not in link.c - the orifice height is read in the XSECTION section and is the same variable as the diameter of a circular link or the height of a rectangular link depending on the type of orifice.  

If you want to set the height then you need to set the height in XSECTION.  Here is how SWMM 5 exports the Orifice Height in the Delphi GUI Code - it is the 3rd parameter of the line

 

with Project.Lists[ORIFICE] do   

for I := 0 to Count-1 do   

begin      L := TLink(Objects[I]);     

Line := Format('%-16s', [Strings[I]]);     

Line := Line + Tab + Format('%-12s', [L.Data[ORIFICE_SHAPE_INDEX]]);     

Line := Line + Tab + Format('%-16s', [L.Data[ORIFICE_HEIGHT_INDEX]]);     

if SameText(L.Data[ORIFICE_SHAPE_INDEX], 'CIRCULAR') then       

Line := Line + Tab + '0         '     

else        Line := Line + Tab + Format('%-10s', [L.Data[ORIFICE_WIDTH_INDEX]]);     

Line := Line + Tab + '0         ' + Tab + '0';     

S.Add(Line);   

end;

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Permalink Reply by Upaka on October 6, 2011 at 9:00am

Thank you very much. I will look XSECTION in detail. Thanks again.

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