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February 4, 2014, 15:49 |
Modify existing velocity field
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#1 |
Member
Tony
Join Date: Nov 2013
Posts: 35
Rep Power: 13 |
Dear foamers,
Does anyone know that how I can add random number to an existing velocity filed? I used funkySetFields to initialise a random velocity filed for my simulation, after it has run for some time, I want to restart the simulation by adding random number to the velocity field I've already got. Is there any way to achieve that? Hope anyone can give me a hint. Thank you very much. Best regards, Tony |
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February 5, 2014, 09:21 |
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#2 |
Senior Member
Nima Samkhaniani
Join Date: Sep 2009
Location: Tehran, Iran
Posts: 1,267
Blog Entries: 1
Rep Power: 25 |
you can modify your solver in createFields, then after where it reads velocity you can add some thing like U=U + U*rand()
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February 5, 2014, 10:48 |
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#3 |
Member
Tony
Join Date: Nov 2013
Posts: 35
Rep Power: 13 |
Hi Nima,
Thanks for the reply. I just wonder if I modify the solver, would the velocity field always be like that? Since I just want to modify the existing field and put it to run again, do you have any ideas about that? Thank you very much. Regards, Tony |
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February 5, 2014, 10:50 |
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#4 |
Senior Member
Nima Samkhaniani
Join Date: Sep 2009
Location: Tehran, Iran
Posts: 1,267
Blog Entries: 1
Rep Power: 25 |
if you change only creatFields.H, then it would be only in first iteration
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funkysetfields, random |
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