# Phase change with VOF

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 July 17, 2009, 03:07 #21 Senior Member   isabel Join Date: Apr 2009 Location: Spain Posts: 171 Rep Power: 10 In this link you have the discretization of pEqn.H in sonicFoam, buoyantFoam and interFoam: http://www.cfd-online.com/Forums/ope...o-details.html For interPhaseChangeFoam is similar to interFoam. Kanarya likes this.

July 19, 2009, 07:28
#22
Senior Member

Sandy Lee
Join Date: Mar 2009
Posts: 213
Rep Power: 11
Quote:
 Originally Posted by isabel 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.

 April 29, 2010, 12:21 #23 New Member   Join Date: Dec 2009 Posts: 10 Rep Power: 10 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.

 April 29, 2010, 12:22 #24 New Member   Join Date: Dec 2009 Posts: 10 Rep Power: 10 can anyone suggest about the use of VOSET in fluent

 April 29, 2010, 12:47 paper #25 New Member   Join Date: Dec 2009 Posts: 10 Rep Power: 10 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

 January 24, 2011, 10:50 BasicThermo.C in interfoam #26 New Member   karthik Join Date: Dec 2010 Location: munich Posts: 16 Rep Power: 9 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

 January 7, 2012, 23:47 VOF Method #27 Senior Member   ehsan Join Date: Mar 2009 Posts: 109 Rep Power: 10 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

 November 16, 2012, 06:27 #28 New Member   Harikrishnan G Join Date: Nov 2012 Posts: 2 Rep Power: 0 Which equations are to be solved for the simulation of a flow boiling case????????

 September 6, 2013, 02:34 add T.eqn and source term for evap #29 New Member   sasan Join Date: Sep 2013 Posts: 28 Rep Power: 6 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...

 January 14, 2016, 14:11 The paper #30 New Member   Join Date: Apr 2015 Posts: 2 Rep Power: 0 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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