open TELEMAC-MASCARET The mathematically superior suite of solvers

Hello, everyone!
I am simulating a jet current. But in the result I have two doubts. I have been thinking about it for nearly one week but have no idea up to right now. Hope someone can take a look.
1) The vertical profile is normal except the bottom. Theoretically, it should be 0, but in my case it turns out to be the maximum. I cannot tell why.



2) I have already modified the tra_prof_z function in order to simulate the effect of jet, but can I use a changing sediment concentration at the boundary at the same time just like the flowrate? Because the data of sediment concentration in the .qsl file doesn't work like the flowrate?
If you have an idea, please tell me. Thanks!

Hello,hyoukai!
I think you can try to set the key word BOUNDARY CONDITION ON THE BOTTOM =2.For more details ,you can refer TELEMAC-3D user's manual !
Best regards !
Andy