I used simple schematic to check the mass balance of the model. When I change the channel bed width, outflow hydro-graph peak was reduced but no time lag of the peak. I have found there is a system loss by internal outflow and due to that, I couldn't maintained the mass balance of the event. Can any one let me know how can I change the bed width while keeping the mass balance for the same input rain fall.
Thank you
Replies
Hello,
If the channel volume is much larger due to your larger width then a smaller time step, the keep option in dynamic wave options will help or should help.