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Old   March 8, 2010, 15:15
Default Dynamic mesh simulation not converging
Join Date: Jun 2009
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mrestrepo30 is on a distinguished road
Hi everybody,

I'm currently running a dynamic wall simulation in which I'm having problems with convergence for continuity.
I'm using the unsteady solver, and in solution controls I am using PISO.
For the pressure discretization either Standard or PRESTO, and for the Momentum: second order upwind.

I'm setting up a convergence criteria of 10^-5, with a small time step compared to the displacement of the grid (6.25^-4), and before running the unsteady simulations I ran a steady simulation until convergence, and then used this for the following simulations.

Does anyone has any suggestions to improve the convergence of my simulations?
mrestrepo30 is offline   Reply With Quote


continuity, convergence, dynamic mesh, piso

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