Hi,
I am new user with Hec-Ras, I did a simulation in Egypt by utilizing the SRTM data to create a 2D flow area then use inflow hydrograph as upstream boundary condition and normal depth as downstream boundary condition.
The inflow peak discharge is 40 cubic meter per second but when I measured the flow from the result , the peak discharge is bigger than 2000 m3/sec. in addition to this point, the velocity has reached to 15 m/sec.
These results is not logical but I don’t know why my model is not stable. I really appreciate if anyone can help me.
Thanks in advance