code-mphi / ECOGEN

A CFD open source code dedicated to multiphase compressible flows
https://code-mphi.github.io/ECOGEN/
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How to incorporate mass transfer #26

Closed syam-s closed 1 year ago

syam-s commented 1 year ago

Hello ECOGEN team, I would like to incorporate mass transfer into the ECOGEN since I am interested in the evaporation of the liquid phase. It would be very helpful if you could give some suggestions on how to incorporate the mass transfer into the additional physics term of ECOGEN. Thank you.

code-mphi commented 1 year ago

Dear Syam,

To my knowledge and without entering too many details, there are two variants to introduce phase change. The first uses relaxations and a first version of it is already implemented within ECOGEN. However, the current version is not robust and work has been done on our side but it is not in the available public version yet. Anyway, we implement this by using the relaxation methods within ECOGEN. The second variant is to use source terms, also using saturation conditions. For this one, it would certainly make more sense to implement it through the source methods (such as what is done for gravity), rather than the additional physics methods which are more appropriate for splitted models.

Hope it helps and please keep us posted!

Best regards, Kevin Schmidmayer Permanent researcher Inria Bordeaux Sud-Ouest - Project-team CAGIRE Université de Pau et des Pays de l'Adour - Laboratoire de Mathématiques et de leurs Applications de Pau France https://kevinschmidmayer.github.io/

On Fri, Nov 11, 2022 at 1:56 PM Syam S. @.***> wrote:

Hello ECOGEN team, I would like to incorporate mass transfer into the ECOGEN since I am interested in the evaporation of the liquid phase. It would be very helpful if you could give some suggestions on how to incorporate the mass transfer into the additional physics term of ECOGEN. Thank you.

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syam-s commented 1 year ago

Thank you Kevin for the response. Is it possible to give some instructions (documentation) or literature on how to use or apply the relaxation method and source method for the implementation of the phase change part? Will the new phase change model be available in the next version?