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Old   October 7, 2003, 04:01
Default Grid adaption
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I want to adapt my grid in fluent using grid adaption using the temperature profile. My simulation is done with a first order scheme.

My question is, should i converge the solution on a second order scheme before adapting the grid or is it ok to adapt from the first order solution??


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Old   October 7, 2003, 14:31
Default Re: Grid adaption
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Usually the second order scheme gives more accurate results than the first order one, so also adaption should be better if based on a solution obtained with the 2nd order scheme.

I'd suggest, if possible (no unstable solution) and not too much time expensive, to obtain a converged solution with second order, then to adapt the grid, and let the solution converge again using second order discretization scheme.



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