Two Pass InfoSewer Solution
The d/D you are Mapping is from the 1st pass or the solution in which the manhole loads are calculated and the program estimates the flow in the links – the flow gives the value of d/D which you are mapping.
The HGL plot is plotting the adjusted d/D which is the result of the 2nd pass of the solution, this pass estimates backwater, surcharge and pressure and often the value of the adjusted d/D is higher than the 1st pass value of d/D.
The adjusted d/D is a better way of finding those pipes that are more than 0.75 full.
via Blogger http://www.swmm5.net/2013/06/two-pass-infosewer-solution.html
You may also like
-
How to Setup RDII in InfoSewer Pro (Storms)
-
How to ReMake an IEDB Folder for InfoSewer
-
How to Make an Internal Outfall into an External Outfall when you have more than one link connected to an Outfall in SWMM5 or InfoSWMM
-
New Domain Nodes and Links in InfoSewer
-
How to Use Population for DWF in SWMM5 and InfoSWMM