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The heat transfer coefficient in OF is different from Fluent

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Old   April 13, 2023, 09:03
Post The heat transfer coefficient in OF is different from Fluent
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Hello, FOAMers.
I found that the coefficient of heat transfer from particle to carrier gas due to the surface reaction in OpenFOAM, is different from that in ANSYS Fluent. Below is the code of OpenFOAM v8 (src/lagrangian/intermediate/parcels/Templates/reactingMultiphaseParcel.C). “coeff” is equal to “f_h” (see the picture below)? but the “coeff” is based on the parcel temperature, which is not shown in the description of “f_h” in the theory guide of Fluent. Does anybody know why this in OpenFOAM? Is there any reference to this? Thank you very much!

Code:
670* const scalar xsi = min(T/cloud.constProps().TMax(), 1.0);
671* const scalar coeff =
672* (1.0 - xsi*xsi)*cloud.constProps().hRetentionCoeff();
673*
674* Sh += coeff*hReaction/dt;
675*
676* dhsTrans += (1.0 - coeff)*hReaction;
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heat tranfer coefficient, surface reactions, temperature dependent

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