open TELEMAC-MASCARET The mathematically superior suite of solvers

Hello,

I would like to get your idea on why by using telemac3d I was not able to simulate the so called bow wave or surface roller generated by the dam break wave at the upper body of water in front of the structure. Please see the attached picture of experimental work versus numerical work showing inability of Telemac to simulate surface roller.Please see the attached file.

Thanks,
Sanaz

Hello Sanaz,

Would it be possible that you give a paper to exactly show what you want to model please?

Anywavy, iff you want to see breaking waves, it is not possible with TELEMAC-3D as free surface is considered univocal.

Chi-Tuan

Hello Chi-Tuan,
Thanks for your reply.
Actually, I am writing the paper. Comparing my experimental and numerical work. As it is shown in the pdf I sent in my previous message, Telemac could not simulate that back-flow at the upper body of water in front of the structure after the initial impact of wave on the structure. when the wave hits the structure it redirected upward over the structure(vertically) and them return back at inverse direction of the incoming wave.

Could you please explain more what you mean by univocal? what is univocal flow?I googled in the internet but still could not quite get the concept.

Thanks in advance,
Sanaz

Univocal means single-valued: for one location (x,y) in the horizontal plane, there is only one possible value for the free surface (and for the bottom elevation).

Anyway, your pdf document is hard to understand without every axis. For the bottom figure, what are the axes? x and y, x from right to left (flow coming from right)? Is it a view from above? Lateral view?
If it is not a (x, z) view, do you you have one of your experiment, to be compared with your TELEMAC-3D simulation? It would be easier to understand.
Otherwise a schematic draw?

Chi-Tuan

Thank you dear Chi-Tuan. I think you answered my question. However, I will send you a better pictures from the experiments to be comparable with the telemac model.

Thanks a mil.
Sanaz