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Old   October 21, 2003, 08:15
Default Code Validation
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Dev
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Hi, I'm working with a commercial CFD package and I'm looking for basic examples that can be used to validate the code. As I'm trying to model highly convective biological flows with large Peclet numbers, I need to validate the upwinding ability of the software to solve these convective flows. Any comments or advice would be greatly appreciated. Thanks
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Old   October 21, 2003, 09:20
Default Re: Code Validation
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Pr
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I think You can do something like this. You can discretize convection diffusion equation and use differenet values of Sc number and you can validate your code against analytical results.

Pr
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Old   October 21, 2003, 09:34
Default Re: Code Validation
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Dev
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Thanks. As I'm new to CFD, I was wondering if you knew about upwinding. I'm using a finite element code and all the published work refers to the Streamline/Upwind Petrov-Galerkin (SUPG) upwinding technique. However, the upwinding is applied to the Navier-Stokes equations. If I can validate my upwinding against the published Navier-Stokes work, is it possible to assume that the upwing technique is valid for the convection diffusion equation? Again, any advice would be of great help
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Old   October 22, 2003, 06:50
Default Re: Code Validation
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Pr
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Hi dev

I was wondering if you knew about upwinding. I'm using a finite element code No I do not know anything about finite elemnt codes and all the published work refers to the Streamline/Upwind Petrov-Galerkin (SUPG) upwinding technique. However, the upwinding is applied to the Navier-Stokes equations. If I can validate my upwinding against the published Navier-Stokes work, Why do not you validate your results ith convection reaction diffusion equation it would not take muc time i guess is it possible to assume that the upwing technique is valid for the convection diffusion equation? Again, any advice would be of great help

Pr
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Old   October 22, 2003, 06:54
Default Re: Code Validation
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Dev
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Thanks for the advice Pr
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