Hello,
I am looking for information regarding the transition equation labeled 8-5, page 8-10 of the HEC-RAS 5.0 Reference Manual : Q=CWB √2g3H
This equation is presented as the “transition” equation linking the results of free flow (equation 8-4) and orifice flow (equation 8-3) equations for gate submergence between 0.67 to 0.8.
Does anyone know how this transition is dealt with? After looking into HEC RAS (version 5.0.7) results and comparing it with analytical results based on these three equations, it seems plausible that the “C” coefficient of the transition equation varies with submergence. Is this correct?
The HEC-RAS reference manual does not present any details regarding this transition and more precision would be welcome!
Thanks in advance for your answer!