I am trying to model the interaction between stormwater and surface water using SWMM. Flow in the canal I am dealing with is maintained by gated spillways. The canal has very irregular and even adverse slope i.e. slope against the direction of the flow as shown in the following figure.
If I provide the SWMM model with this exact canal profile against the direction of flow, will it be able to reflect the head loss due to friction and change in conveyance due to adverse slope? ( I am providing the gated spillway upstream to input the necessary head)
What alternative can I use to represent the effect of this adverse slope in a simplified way?
This is stressing the scope of SWMM I understand, but if I can do this, this will be something very interesting .
I appreciate your help as always. Thanking you in anticipation.