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The pressure equation in reactingFoam and rhoReactingFoam |
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December 29, 2019, 02:28 |
The pressure equation in reactingFoam and rhoReactingFoam
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Senior Member
Ruiyan Chen
Join Date: Jul 2016
Location: Hangzhou, China
Posts: 162
Rep Power: 9 |
Hello Foamers,
As far as I understand, the two solvers reactingFoam and rhoReactingFoam differ ONLY in the way how the density is calculated. One is calculated from psi*p and one is directly accessed from the thermodynamics library (By the way is this true?). They are both pressure-based solvers, because they both solve a pressure equation to satisfy the continuity equation. However, their pressure equations are different. I also notice that starting from OpenFOAM-5.x, the pressure equation in rhoReactingFoam is the same as the one in rhoPimpleFoam. But before that, the pressure equation in reactingFoam is the same as the one in rhoPimpleFoam. I basically have two questions: 1. Why the pressure equation is different in reactingFoam and rhoReactingFoam? Aren't they solving the same pressure equation? 2. How is rhoReactingFoam (or reactingFoam) connected to rhoPimpleFoam? I would think that with reaction turned off, these three should be the same thing. Thanks in advance, Ruiyan |
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