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how is latent heat acounted for during phase change in compressibleInterFoam of9?

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Old   April 20, 2023, 11:16
Question how is latent heat acounted for during phase change in compressibleInterFoam of9?
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S Abrahams
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I'm using compressibleInterFoam in OpenFOAM 9. It is possible to allow phase change using the Kunz, Merkle or Schnerr-Sauer models.

I expected there to be a source term in the temperature equation to account for the latent heat taken/released during vaporisation/condensation. I can't see any such source term or any correction to the temperature due to phase change.
    fvScalarMatrix TEqn
        fvm::ddt(rho, T) + fvm::div(rhoPhi, T) - fvm::Sp(contErr, T)
      - fvm::laplacian(turbulence.alphaEff(), T)
      + (
            fvc::div(fvc::absolute(phi, U), p)()() // - contErr/rho*p
          + (fvc::ddt(rho, K) + fvc::div(rhoPhi, K))()()
          - (U()&(fvModels.source(rho, U)&U)()) - contErr*K
         + alpha2()/mixture.thermo2().Cv()()
        fvModels.source(rho, T)





I believe fvModels.source allows for a user-defined source term in an fvModels file and does not relate to latent heat or phase change.

Is a latent heat source term or temperature correction defined elsewhere? Or is the latent heat energy not accounted for in this solver?
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compressibleinterfoam, latent heat, phase change

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