Hello Folks ,
Kindly i have a question related to Sewer-gems Software , my question is about the hydraulic grade line in a sewer networks that modeled throughout Sewer gems or sewer cad .
The Hydraulic grade lines have a small jump before manhole entrance , even-though the inlet pipe and outlet pipe has the same : diameter , flow , slope , partial full flow percent
my question why this small jump happens ??
We do not support an option to turn off the hydraulic jump that is modeled when a supercritical reach is interrupted by a manhole. In your case, I expect the software to yield consecutive S2 profiles. Alternatively, if you deem the junction between your two pipes as hydraulically insignificant (lateral inflows, junction losses, etc), then you could model your reach as one continuous pipe instead of two.