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-   -   Flueunt-VOF model... (https://www.cfd-online.com/Forums/fluent/83733-flueunt-vof-model.html)

PKarthikCFD January 9, 2011 22:50
Flueunt-VOF model...
 
I am using Volume Of Fluid(VOF) model. For outer boundary i have to give air as a fluid which is not a part of mixture or VOF model. So please help me how to give air without incorporating in VOF model. Thank You....

k.baker January 14, 2011 14:18
I am afraid your question not clear how you want to apply vof model without including air? may you give more details about your problem supported with sketch?

alilouu February 3, 2011 16:39
hi
same problem, what are the steps required to use vof, with two phases air+ benzene in a cylindre;;;; i tried but always i found only one phase in the end
thanks

ComputerGuy February 3, 2011 20:24
Send me a PM...I'll look at your case. You've posted this question across many discussions.

Quote:
Originally Posted by alilouu (Post 293534)
hi
same problem, what are the steps required to use vof, with two phases air+ benzene in a cylindre;;;; i tried but always i found only one phase in the end
thanks

k.baker February 4, 2011 02:54
alilouu is it a stratified flow? fluids moves with same velocities? laminar or turbulent? give me hints about your problem ?

k.baker February 4, 2011 02:57
alilouu is it a stratified flow? fluids moves with same velocities? laminar or turbulent? give more hints about your problem ?

PKarthikCFD February 4, 2011 07:13
Thank u for your kind response....If u find any other method please inform me...

PKarthikCFD February 4, 2011 07:23
Thank u for your kind reply...Here i want to use air and water liquid so if i want to give two phase means i couldnt give two phase in my VOF model...The fluent alway showing only one phase so please can u help me sir....

kai-yun March 11, 2011 05:05
hi, i have the same problem, with two phase (water-liquid + water-vapor) with species transfer (liquid to vapor), i had patched water-liquid already; but still shows no water-vapor. somehow, i can't figure out, what's the major problem is ?

thanks all, i will wait with hopes.

alilouu March 22, 2011 12:26
always with vof
 
hi K.baker
sorry im late, ..i have some results (with Taylor Couette problem) VOF, two phases.. but i want to compare with others (numeric stady on a free surface) to see if im wrong or not...
always i don't have the static pressur....
thanks a lot

Zhaohui Lu March 22, 2011 23:32
Quote:
Originally Posted by kai-yun (Post 298977)
hi, i have the same problem, with two phase (water-liquid + water-vapor) with species transfer (liquid to vapor), i had patched water-liquid already; but still shows no water-vapor. somehow, i can't figure out, what's the major problem is ?

thanks all, i will wait with hopes.
there are some other setting items of volume of phase on initialize and boundary conditions. just try enter different setting then see what happens.Good luck!!


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