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No difference on the results with many shemes |
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December 17, 2017, 14:38 |
No difference on the results with many shemes
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Member
Paul Palladium
Join Date: Jan 2016
Posts: 93
Rep Power: 10 |
Hello everyone,
I am working on a case very similar to the pitzDaily tutorial (simpleFoam) with a very fine mesh and I observe no difference on the results with first order scheme (Gauss upwind) and many second order schemes like linearUpwind, linear, QUICK etc... I change also my grad schemes from linear to leastSquare and fourth and I observe also no significant change (less than 0.5%) on my results. Is it possible that with a very fine mesh all the schemes give almost the same results (less than 0.5% difference) ? Am I observing something usual or am I missing something ? I precise that I am using the results obtained with the simplest schemes (grad : Gauss linear, div : Gauss upwind) to initialize the others calculations. Thanks a lot for your help. |
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