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Divergence in model

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Old   May 27, 2016, 17:44
Default Divergence in model
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I am trying to simulated a gas stirred vessel (metallurgical ladle) using Eulerian multiphase model in 2D axisymmetric geometry. Im using explicit scheme and dispersed turbulence model. The problem is that the solution diverges, showing an Courant number very high and also (sometimes) a flotating point error. I have used different mesh size using 7000, 12000, 17000, 24000, 50000, 100000 and 400000 elements, time step since 1e-05 to 1e-08 but the divergence still appears. What could be the cause? Please, if have any suggestions, I will apreciate it.
The mesh is very fine in the simmetry axis and the interface of liquid.
Thank you.
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axisymmetric, courant number, eulerian, fluent

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