Flueunt-VOF model...

PKarthikCFD · January 9, 2011, 22:50

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

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

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

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!!

January 9, 2011, 22:50	Flueunt-VOF model...	#1
PKarthikCFD New Member karthik Join Date: Jan 2011 Location: India Posts: 3 Rep Power: 15	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....

March 22, 2011, 12:26	always with vof	#10
alilouu Member daalou Join Date: Feb 2011 Posts: 31 Rep Power: 15	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

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January 14, 2011, 14:18		#2
k.baker New Member Khalid Baker Join Date: Mar 2009 Posts: 19 Rep Power: 17	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?

February 3, 2011, 16:39		#3
alilouu Member daalou Join Date: Feb 2011 Posts: 31 Rep Power: 15	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

February 4, 2011, 02:54		#5
k.baker New Member Khalid Baker Join Date: Mar 2009 Posts: 19 Rep Power: 17	alilouu is it a stratified flow? fluids moves with same velocities? laminar or turbulent? give me hints about your problem ?

February 4, 2011, 02:57		#6
k.baker New Member Khalid Baker Join Date: Mar 2009 Posts: 19 Rep Power: 17	alilouu is it a stratified flow? fluids moves with same velocities? laminar or turbulent? give more hints about your problem ?

February 4, 2011, 07:13		#7
PKarthikCFD New Member karthik Join Date: Jan 2011 Location: India Posts: 3 Rep Power: 15	Thank u for your kind response....If u find any other method please inform me...

February 4, 2011, 07:23		#8
PKarthikCFD New Member karthik Join Date: Jan 2011 Location: India Posts: 3 Rep Power: 15	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....

March 11, 2011, 05:05		#9
kai-yun New Member kai-yun, chung Join Date: Mar 2011 Location: Taiwan Posts: 1 Rep Power: 0	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.