Flood Volume in Storm Sewer Network
Flood Volume in Storm Sewer Network
(OP)
Hi All,
I have created a spreadsheet model to calculate the hydraulic capacity of storm sewer using mannings equation. The spreadsheet can calculate HGL for a system. I am interested to calculate the flood volume from the system(volume excess of the system)to quanity the amount of spill. Please can anyone advice me in right direction.
I have created a spreadsheet model to calculate the hydraulic capacity of storm sewer using mannings equation. The spreadsheet can calculate HGL for a system. I am interested to calculate the flood volume from the system(volume excess of the system)to quanity the amount of spill. Please can anyone advice me in right direction.





RE: Flood Volume in Storm Sewer Network
But........ why would you want or need to know the volume of overflow (spill)? How would you use this number ?
RE: Flood Volume in Storm Sewer Network
Something to think about while you tackle this problem.
RE: Flood Volume in Storm Sewer Network
RE: Flood Volume in Storm Sewer Network
The invert slope is used in open channel flow because in a long channel with constant geometry the slope of the invert is the slope of the HGL.
In general the HGL slope should be used, not the pipe slope.
RE: Flood Volume in Storm Sewer Network