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How to calculate the Derivative of Density to Time
I have tried the inserting A.V method, but I faild.
Is there simpler method to complete it? |
Do you want to calculate it in solver time or post-processing?
Do you want the full variable field or an an average over the domain/boundary patch? |
Quote:
Thank you for your reply. I have solved out this problem with time derivative operator. But I stiil want to know why the Trans_Loop trick does not work? There's a similar problem. https://www.cfd-online.com/Forums/cf...-obtained.html My ANSYS is v18 and I found I need not to do the one iteration initialization A.V with Zero. Whether this trick has been delected in the new version? If it has been debugged, how can we store last iteration result? Thank you! |
The TRANS_LOOP thing is an undocumented feature, and therefore is highly unstable, not guaranteed to work and can give unreliable results. Use it at your own risk. If you report it does not work in your case - it does not surprise me.
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