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-   -   difference between PISO and doubleSIMPLE (http://www.cfd-online.com/Forums/main/69856-difference-between-piso-doublesimple.html)

CFDtoy November 6, 2009 14:32

difference between PISO and doubleSIMPLE
 
Hello,
I have a fundamental question regarding two methods PISO and a doubleSimple scheme.

simple :(1) solve u* (u,v,w) based on guessed p* -> update p' (using u*)-> update u=u*+u', p = p*+p'

piso : (1) solve u* (u,v,w) based on guessed p* -> update p' (using u*)-> update u=u*+u', p = p*+p'
(2) solve u** based on p* -> solve p'' -> update u**=u*+u',p**=p*+p'

is piso a two time SIMPLE per iteration?

Thanks,

CFDtoy


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