CFD Online Discussion Forums

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-   OpenFOAM Running, Solving & CFD (http://www.cfd-online.com/Forums/openfoam-solving/)
-   -   Does the timesteps affeect the result (http://www.cfd-online.com/Forums/openfoam-solving/57965-does-timesteps-affeect-result.html)

carrie February 13, 2009 00:19

hi, when i calculate my case,
 
hi,
when i calculate my case,first i set the timestp with 0.005,and then i set it with 0.001,i get different result,what i want to know :
does the timesteps affeect the result?

dbxmcf February 13, 2009 01:00

Surely, it DOES, significantly
 
Surely, it DOES, significantly, actually time step is one of the most important input parameters for finite difference, if you are completely new to CFD, take a look at the Courant-Levy-Freiderich condition in wiki

carrie February 13, 2009 02:49

thank you very much!
 
thank you very much!


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