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How to setup initial pressure for an ABL buoyantBoussinesqSimpleFoam simulation

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Old   September 24, 2014, 08:27
Default How to setup initial pressure for an ABL buoyantBoussinesqSimpleFoam simulation
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Leonardo Oliveira
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Hello Foamers,

I have started to use OpenFOAM this year, and right now I'm trying to use it to perform an ABL simulation considering the temperature effects, so a decide to use the buoyantBoussinesqSimpleFoam solver.

The simulation consists in a flat terrain with a Box in the middle, the top BC is 310K hot and the rest (inlet, outlet, sides, ground and Box) is 283k.

The U in the inlet is a log prifile made with the ABLconditions file (took from the turbineSiting tutorial).

When I start the solver it start the calculations but, for some reason that I don't know, the time step continuity errors goes up high and the simulation stops with a "floating point exception". I think this has to be with the BC (correct me if I'm wrong).
So I have some questions:

1. How am i supose to setup the initial "p_rgh" file?

2. The "p" file is really needed?

Thanks in advance.
Sorry for the bad English.

Leonardo Oliveira.
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Old   November 20, 2014, 12:17
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Could you solve the problem? I have the same problems.
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abl flow, buoyantboussinesqsf, p_rgh, temperature bc

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