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-   -   What's the advantage of Pseudo-compressiblity? (http://www.cfd-online.com/Forums/main/4829-whats-advantage-pseudo-compressiblity.html)

lololo June 12, 2002 07:34

What's the advantage of Pseudo-compressiblity?
 
I am a beginner of this field. As we know, we can use Pseudo-compressibility idea for continuity equation in the incompressibility flow instead of a pressure-correction equation, then What's the advantage of Pseudo-compressiblity? Can you give me some words or show some papers? thank you in advance.

Nicola June 12, 2002 08:44

Re: What's the advantage of Pseudo-compressiblity?
 
There are two classical approaches to solve incopressible flows: the one using pressure correction idea and the one using pseudo-compressibility idea. The choice between the first or the latter is essentially depends on personal taste, because both work well. Anyway, I think that pseudo-compressibility is used because it's easily implemented from previously existing codes for compressible flows. So, if you have a time marching code for compressible flows, the best choice, in my opinion, is the pseudo-compressibility approach. Look for "Chorin time marching" on the net to find some papers on the subject.


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