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-   -   effects of compressibility (http://www.cfd-online.com/Forums/main/128073-effects-compressibility.html)

flux January 2, 2014 08:17

effects of compressibility
 
Hi,

i try to understand how CFD-software, especially OpenFoam and Star-ccm+ deal with compressible flows. For example an air flow at a Mach-Number of about 0.5...

I already consulted books like Wilcox and the user guides of star-ccm+ and OpenFoam... but i did not fully understand it.

As example i will choose the standard k-epsilon-model:

Does this programs solve special equations for k and epsilon, for example favre averaged, modeled conservation and transport equations or does they just use the formulas of an incompressible case and add some correction terms or factors?

tnaks for the help!

flux January 5, 2014 07:22

push... i really need to understand this :(


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