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Hello,

I had maked a simulation for the dispersion of sediment dredger. I have results, but i am realy still confused for the concentration of sediments.

The result below, show that after the stoping of dredging the sediment plume propaged in the domain. But for the concentration in the reality i have 2.5 kg/s of sediment which are resuspended from the dredging, and 0.1 m3/s dredging volume rate. So we can say that for each 0.1 m3 of sediment dredged 2.5kg was resuspended.

Now i had make a value of tracer of 44.64 wich calculate me a quantity of 25, with the formula of MASSOU in the subroutine difsou.f.

Wich i could not understand is the dilution calculated from the equation of advection, i had received many reply for this topics but i still don't understand.

The results:
1h of the simulation:
4hour of simulation and dredging:

3hour after the end of dredging

The end of the simulation


Can some one explain me?
Thank you in advance.
BEST REGARDS.
YASMINA.

Hello Yasmina

Sorry for this late reply and sorry because I do not understand your question neither.

If your problem is still unresolved, please explain more clearly what is bothering you.

kind regards

Riadh

Dear Riadh, maybe you can give me some responses to my problem. I am trying to model a resuspended sediment, I am new in the use of TELEMAC and I am a little confused.
Can I use SISYPHE to solve that? or do I have to use other tool?
I have been reading about the NESTOR subroutine maybe It is the solution, or the dredgsim part but I do not know it.
Kind regards.
Mateo Zombori