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Phase change with VOF

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Old   July 17, 2009, 03:07
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  #21
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isabel
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In this link you have the discretization of pEqn.H in sonicFoam, buoyantFoam and interFoam:

PISO Details

For interPhaseChangeFoam is similar to interFoam.
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Old   July 19, 2009, 07:28
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Sandy Lee
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Quote:
Originally Posted by isabel View Post
Thank you very much, sandy. In the interPhaseChangeFoam, the terms vDotcP and vDotvP are divided by the pressure, so when you solve the continuity equation, you multiply for the pressure again to have the units 1/s.

Then, my equation which is

div(U) = source

in pEqn.H of the interPhaseChangeFoam solver would be typped as:

fvScalarMatrix pEqn
(
fvc::div(phi) - fvm::laplacian(rUAf,pd) - source
);


Am I wright?
div(U) = (vDotcP-vDotvP) * (p - pSat)

So, to pEqn of interPhaseChangeFoam, the Sp of source term is {(vDotcP-vDotvP) * p} and Su is {-(vDotcP-vDotvP) * pSat}.

However, in pEqn.H, the U is the face volume flux phi instead of the velocity U, why we need not intepolate the RHS too?

Last edited by sandy; July 20, 2009 at 00:30.
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Old   April 29, 2010, 12:21
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Hello Bitan,

I am working on surface aeration. We have tried with LES in fluent. want to apply the level set method to study the interface behavior in openfoam.

I came across the link to below paper. Would it be possible to refer to this paper ?

Implementation of level set method based on OpenFOAM for Capturing the free interface in incompressible fluid flows.
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Old   April 29, 2010, 12:22
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can anyone suggest about the use of VOSET in fluent
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Old   April 29, 2010, 12:47
Post paper
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I am working on surface aeration. We have tried with LES. want to apply the level set method to study the interface behavior. We are using openfoam.

I came across the link to below paper. Would it be possible to refer to this paper ?

Implementation of level set method based on OpenFOAM for Capturing the free interface in incompressible fluid flows

my email address is akforu2000@yahoo.co.in
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Old   January 24, 2011, 10:50
Default BasicThermo.C in interfoam
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hello all,
I am new to openfoam, and can anyone give me advice on how to use BasicThermo.C in Interfoam??
Basically, i want to vary density and temperature with change in pressure, in a two-phase vof problem.
it would be a great help if anyone would give me advice on this!!
thank you,
warm regards,
Karthik
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Old   January 7, 2012, 23:47
Default VOF Method
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ehsan
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Dear All

May I ask you which VOF model has been used in OF? Is it Youngs, Hirt and Nichols, or another VOF method?

Thanks
Ehsan
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Old   November 16, 2012, 06:27
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Harikrishnan G
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Which equations are to be solved for the simulation of a flow boiling case????????
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Old   September 6, 2013, 02:34
Default add T.eqn and source term for evap
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sasan
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Hi Foamers,
i want simulate evaporation in vertical tube,i use interFoam solver,and i know should modify by adding T.eqn and mass source..but i dont know how??plz help...
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Old   January 14, 2016, 14:11
Default The paper
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Hi everyone!

Could you please email me this paper:
Implementation of level set method based on OpenFOAM for Capturing the free interface in incompressible fluid flows

my email: mashpot139@gmail.com

thanks
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