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Decomposing mesh

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Old   February 5, 2018, 04:50
Default Decomposing mesh
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Hello Foamers,

when I decompose my geometry meshed with SHM into 2 regions with the scotch method, there is something left out in the pressure boundary condition. I defined an outlet with totalPressure BC and specified gamma for the fluid. However, after decomposing the gamma is set to the default value 1. The same problem appears when I use mapFields and the patch only exists in the target geometry.
Has anyone an idea what I might be doing wrong? Any help would be much appreciated. I am working with OF 4.1.

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Old   February 5, 2018, 08:24
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Found the solution! In order to specify a gamma > 1 you have to handle the fluid as supersonic compressible and therefore also specify psi (or thermosi) in the totalPressure BC as its default value is "none".
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decomposepar, mapfields, pressure bc, totalpressure

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