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  1. gsharif

    HEC RAS warning msg: subcritical analysis, while trying to calculate culvert and weir flow

    Hi, I am using steady flow of 9.15 m3/s for both upstream and downstream cross section. The boundary condition is - critical depth (downstream) but I have used normal depth (downstream) and both are giving me same problem!
  2. gsharif

    HEC RAS warning msg: subcritical analysis, while trying to calculate culvert and weir flow

    I just realize the picture didnt get uploaded! The warnings are: 1. During subcritical analysis, while trying to calculate culvert and weir flow, the program could not get a balance of energy within the specified tolerance and number of trials. The program used the solution with the minimum...
  3. gsharif

    HEC RAS warning msg: subcritical analysis, while trying to calculate culvert and weir flow

    Hi Guys, I am new to HEC RAS and modelling a small stream about 7 km in length, but at one of the culvert section it is giving me this warning msg and I can see from the culvert output the weir flow and flow inside the culvert is not matching up with the flow. The flow should be 9.15 m3/s but...

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