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Forum: CFX

April 26, 2009, 19:05

Replies: 4

Unbounded advection discretisation

Views: 2,310

Posted By ghorrocks

Hi, Any decent CFD text should discuss the...

Hi,

Any decent CFD text should discuss the pitfalls of first order upwinding. The classic text on CFD accuracy is "Computational Fluid Dynamics" by Roache - this text discusses accuracy issues far...

Forum: CFX

April 21, 2009, 22:07

Replies: 4

Unbounded advection discretisation

Views: 2,310

Posted By ghorrocks

Hi, First order upwinding is very diffusive...

Hi,

First order upwinding is very diffusive and can give erroneous results. That is why it is not recommended for almost all applications. They are however very easy to converge so can make good...

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