Hello,
I am currently trying to model sediment transport upstream a dam with 5.0 version. I use equilibrium load upstream boundary condition for sediment (I change the slope upstream to adjust the sediment volume which enter the model).
Nevertheless, with simple case, this volume which enters the model is not the same if I change the Max depth erosion of the bed or use active layer/Exner 5. The volume is never the volume which is expected to enter the model.
Moreover, during the calculation, HEC-RAS sometimes uses the 3.048.10^-8 mm diameter whereas I enter a diameter of 0.68 mm.
Could someone help me to understand ?
Has someone already had this problem before?
Thanks in advance
CIH