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May 5, 2013, 08:16
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cavitation fluent
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#1 |
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New Member
saadia
Join Date: May 2012
Posts: 19
Rep Power: 13  |
Hi
 can you help me how i simulate flow with cavitation around hydrofoil (naca0015) in fluent.please |
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May 5, 2013, 14:55
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#2 |
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New Member
khalil
Join Date: Jul 2012
Posts: 21
Rep Power: 13 |
hi
for cavitation simulation you should use this proccess: model/mullty phase/mixture/number of phase2 material/select primary & secondary phase define/phases/phase1/select primary phase define/phases/phase2/select secondary phase define/phases/interaction/mass/select cavitation/set vapor pressure |
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May 6, 2013, 05:29
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#3 |
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New Member
saadia
Join Date: May 2012
Posts: 19
Rep Power: 13 |
hi
thanks but i have problem.when i simulate the cas in fluent.vf-phase is not changed. |
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May 6, 2013, 22:09
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#4 |
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New Member
khalil
Join Date: Jul 2012
Posts: 21
Rep Power: 13 |
hi
check pressure perhaps presure is upper than cavitation pressure |
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May 6, 2013, 22:26
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#5 |
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New Member
khalil
Join Date: Jul 2012
Posts: 21
Rep Power: 13 |
excuse me
u should set version of fluent ddp too! |
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May 7, 2013, 04:43
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#6 |
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New Member
saadia
Join Date: May 2012
Posts: 19
Rep Power: 13 |
hi
i use fluent 6.3.26.i think the problem is in characteritic of fluid;fr exmp:surface tension coef and non condensable gaz fraction.becaus i put 3166 pas for 25°C at pressure of vaporization;can you give me the correct values please thanks |
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May 7, 2013, 04:59
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#7 |
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New Member
khalil
Join Date: Jul 2012
Posts: 21
Rep Power: 13 |
no if your material is water set true pressure for water surface tension And vapor pressure use this links:
http://www.engineeringtoolbox.com/wa...ion-d_597.html http://people.emich.edu/jthomsen/The...amics/appF.pdf but i dont think your problem be this! did u use ddp version? |
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May 8, 2013, 08:04
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#8 |
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New Member
saadia
Join Date: May 2012
Posts: 19
Rep Power: 13 |
hi
yes i use ddp version for 2d th |
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May 8, 2013, 11:29
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#9 |
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New Member
khalil
Join Date: Jul 2012
Posts: 21
Rep Power: 13 |
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May 9, 2013, 07:36
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#10 |
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New Member
saadia
Join Date: May 2012
Posts: 19
Rep Power: 13 |
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May 14, 2013, 06:31
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#11 |
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New Member
saadia
Join Date: May 2012
Posts: 19
Rep Power: 13 |
hi
did yoy recieve file.cas. th |
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