I am trying to run a 2D model (HecRasv6.0). I have already verified the hydraulics and the model runs fine without sediment data (the final error is less than 1%). When I add the sediment material data I do it for the entire watershed with a polygon classification shape and assign different gradations to each polygon. As boundary conditions, I leave it with an equilibrium load since it is a watershed. In the end, the model runs complete but it gives me an error “Overall Volume Accounting Error as percentage: 6.456”.
I have seen that for older versions this is an output error. I would like to know if anyone knows exactly what could be causing the error.
Model details:
– Unsteady: Rain on grid
– Unsteady Input Summary:
Number of warm up time steps: 100
2D Unsteady SWE-ELM Equation Set (faster)
– Sediment Input Summary:
Transport Function: Soulsby-Van R.
Sorting Method: Active Layer
Fall Velocity Method: Soulsby
Global deposition/erosion methods:
Soulsby