Problem with VOF in fluent

ash-khan · November 2, 2009, 04:06

hi,

i am new to CFD and my master thesis work is on cfd simulation for multiphase flow using VOF in fluent.

i have recently heard one of the problem that people faced using VOF for compressible flows (like multiphase) in fluent i.e. Fluent takes mach no compressiblity effects instead of pressure compressibility effect.

Can any body explain it to me, why is it so and how to avoid it???

Philipov · November 2, 2009, 05:47

multiphase is not equal to compressible !!! what you have written it seams it is. And... take a look at UG Multiphase modeling

ash-khan · November 3, 2009, 03:00

Hi
once we simulate a two phase (water and air) in a channel using VOF method in fluent (treating a compressible flow), we observe one problem. i.e fluent takes mach no compressibility effects instead of pressure compressibility.
How to avoid such prob?

November 2, 2009, 04:06	Problem with VOF in fluent	#1
ash-khan New Member Join Date: Jun 2009 Location: pakistan Posts: 9 Rep Power: 17	hi, i am new to CFD and my master thesis work is on cfd simulation for multiphase flow using VOF in fluent. i have recently heard one of the problem that people faced using VOF for compressible flows (like multiphase) in fluent i.e. Fluent takes mach no compressiblity effects instead of pressure compressibility effect. Can any body explain it to me, why is it so and how to avoid it???

November 3, 2009, 03:00	VOF in fluent	#3
ash-khan New Member Join Date: Jun 2009 Location: pakistan Posts: 9 Rep Power: 17	Hi once we simulate a two phase (water and air) in a channel using VOF method in fluent (treating a compressible flow), we observe one problem. i.e fluent takes mach no compressibility effects instead of pressure compressibility. How to avoid such prob?

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November 2, 2009, 05:47		#2
Philipov Senior Member Svetlin Filipov Join Date: Mar 2009 Location: United Kingdom Posts: 176 Rep Power: 17	multiphase is not equal to compressible !!! what you have written it seams it is. And... take a look at UG Multiphase modeling