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Old   May 5, 2013, 08:16
Default cavitation fluent
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saadia
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Hi

can you help me how i simulate flow with cavitation around hydrofoil (naca0015) in fluent.


please
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Old   May 5, 2013, 14:55
Cool
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khalil
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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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Old   May 6, 2013, 05:29
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hi
thanks

but i have problem.when i simulate the cas in fluent.vf-phase is not changed.
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Old   May 6, 2013, 22:09
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hi
check pressure perhaps presure is upper than cavitation pressure
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Old   May 6, 2013, 22:26
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excuse me
u should set version of fluent ddp too!
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Old   May 7, 2013, 04:43
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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 25C at pressure of vaporization;can you give me the correct values
please
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Old   May 7, 2013, 04:59
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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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Old   May 8, 2013, 08:04
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hi

yes i use ddp version for 2d


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Old   May 8, 2013, 11:29
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plz send ur cas to modify it 4 u
kh_zahani@yahoo.com
but its have a lil delay
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Old   May 9, 2013, 07:36
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HI

I send u by email the file.cas and report about my work

adjali.gm25@gmail.com

thanks
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Old   May 14, 2013, 06:31
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hi

did yoy recieve file.cas.

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