open TELEMAC-MASCARET The mathematically superior suite of solvers

I am trying to evaluate the impact of raising the downstream water level
has on the sediment transport in a reservoir. Essentially I have two identical runs with the only difference being the downstream water level.

Based on the MASS-BALANCE output, the two runs have similar BEDLOAD FLUX entering from the upstream boundary. When I integrated SOLID DISCHARGE along a segment near the upstream boundary using BLUE KENUE, however, I got two different discharge rates. Also, these two rates (from BLUE KENUE) are not quite the same as that from the MASS-BALANCE output. Does anyone know why this is the case?

Other information on the model setup:
1) conlit.f - I have implemented a sediment discharge rating curve in this subroutine. It calculates QBOR based on the total river inflow. I also skip the call to disimp.f to avoid QBOR being overridden by Q2BOR in the boundary file.

2) The boundary file has LIEBOR = KENT and LIQBOR = KSORT for the upstream boundary.

3) I have armored the upstream boundary nodes to prevent erosion.

Edwin

Hi,

It looks like there was a similar discussion on this topic a while back.

www.opentelemac.org/index.php/kunena/17-...d-rigid-bed?start=10

Based on this earlier discussion, my understanding is that "QS BEDLOAD is the sediment transport capacity not the actual transport rate in the model". Thus, when I integrated QS BEDLOAD in BLUE KENUE, the values I got are not the same as what I noted from the Result Sortie file.

Edwin