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June 17, 2014, 09:14
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Residual fluctuation patterns
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#1 |
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New Member
Nick Prendergast
Join Date: Dec 2013
Posts: 28
Rep Power: 13  |
Hey everyone.
I'm modelling a 2d aerofoil in air and I had convergence (~2500 iterations) when using a courser mesh so I refined the mesh to check for mesh independence. Now however the residuals seem to fluctuating in a pattern and the solution is not converging by 10000 iterations. Can anyone tell me how this could be happening and what I can do to fix it? Thanks Nick |
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June 19, 2014, 05:03
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#2 |
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New Member
Nick Prendergast
Join Date: Dec 2013
Posts: 28
Rep Power: 13 |
I have since found out this numerical noise with both high and low frequency oscillations and solved the problem by turning on the SA turbulence model.
Nick |
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| residuals fluent |
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