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TOPIC: Convergence of flow in an unsteady simulation

Convergence of flow in an unsteady simulation 7 months 3 weeks ago #43308

  • mo
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Hi

I had a successful run of an unsteady 2d run (quasi-steady) run, however I have a very big fluctuation in the outflow, I wish if someone has any hints on how to smooth the results.

the inflow-outflow curves are attached.

Thanks
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Convergence of flow in an unsteady simulation 7 months 3 weeks ago #43333

  • pham
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Hello mo,

What about your initial conditions? Are they far from steady state?

You can try to play with keyword STAGE-DISCHARGE CURVES RELAXATION COEFFICIENT (please read the TELEMAC-2D user manual for more explanations).

Hope this helps,

Chi-Tuan
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