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-   -   Grid adaption (http://www.cfd-online.com/Forums/fluent/32278-grid-adaption.html)

eric October 7, 2003 04:01

Grid adaption
 
Hi,

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??

Regards,

Eric

ap October 7, 2003 14:31

Re: Grid adaption
 
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.

Hi :)

ap



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