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Mutation++ gives non consistent transport properties with condensed species in the mixture #212

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liusl-u-bordeaux opened this issue Jun 14, 2022 · 1 comment
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@liusl-u-bordeaux
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I am running a simulation about the drying process of wood.
The material properties are solid 0, water 0.99, and air:0.01.
GasPropertiesType is FiniteRateMaterial and ChemistryType is SpeciesConservation.
I used "frozenThermalConductivity" for kg (thermal conductivity) and "mixtureFrozenCpMass" for cpg (specific heat capacity).
After the simulation, I got strange values for kg and mu (viscosity). For example, kg is 1.7(W/m/K), and mu is 6.5e-4 (Pa s) in this case.
In the FiniteRateGasProperties solver. the gas properties are updated as follows,
mu[cellI] = mix_->viscosity(); cp_g[cellI] = mix_->mixtureFrozenCpMass(); k_g[cellI] = mix_->frozenThermalConductivity();

I defined the wetair.xml as follows,


N2 O2 H2O

@BBArrosDias
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@jbscoggi and @grgbellasvki I changed the Transport and CollisionDB to consider only gas-phase species. The main issue is that Transport::reactiveThermalConductivity() in Transport utilizes speciesHOverRT which is looping over all the species and affecting mp_wrk1 and mp_wrk2. This leads to incorrect results - at least in equilibrium. Any suggestion?

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