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How solver works?

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Old   January 27, 2006, 02:43
Default How solver works?
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How solver works?i.e. after solver starts how it calculates values of pressure and velocity?does it initially take all values zero?This is as i have observed when solver is running?

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Old   February 24, 2006, 09:23
Default Re: How solver works?
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hi john solver is just like tool to solve prob numerically. in the code which ever direction u have given it will follow the same. for ex. if u gave intialisation zero in code, every time when u run the solver it will start with zero values. but most of the times this wont be the better initialization.u can use better guess. for examaple

if u have values at Re=1000 (reynolds number) u can use this values as initial guess for Re=2500 . what u observed is in that solver developed like every time that will take zero as initial guess

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