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-   -   How to avoid writing extra field quantites as ddt0(phi) (http://www.cfd-online.com/Forums/openfoam/70049-how-avoid-writing-extra-field-quantites-ddt0-phi.html)

ali84 November 12, 2009 19:29

How to avoid writing extra field quantites as ddt0(phi)
 
Hi,

I'm running DNS using a solver wich is based on icoFoam. It automatically writes ddt0(phi) ddt0(U) phi_0 U_0 in each time directory. These quantities seems to be used in my Crank-Nicholson time scheme.
Since my data is huge I prefer not to write them.
Is there any point in keeping these field quantities and if not is there any way to disable writing these quantities.

Alireza

Hellen August 12, 2011 02:21

Dear Alireza,

I met the same problem, to avoid writing the extra field quantites as ddt0, phi and so on. Have you solved this problem? Thank you very much!

best regards,

zxj160 October 24, 2012 09:05

Quote:

Originally Posted by Hellen (Post 319833)
Dear Alireza,

I met the same problem, to avoid writing the extra field quantites as ddt0, phi and so on. Have you solved this problem? Thank you very much!

best regards,

I also met the same problem. Have you solve the problem or can you explain what the meaning of U_0 / phi_0 is ?

My best regards,
Jian

immortality June 11, 2013 14:36

I think they should be written.because next time steps need them.


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