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OpenFOAM- Low Mach Number - boundary

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Old   February 28, 2013, 01:57
Default OpenFOAM- Low Mach Number - boundary
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tmu
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Anderson
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Hi Friends
I have a solver for simulation low mach flow. I have some question about boundary condition.
I want to simulate flame propagation in open tube.
which boundary condition must I use for pd?
I used zeroGradient for walls and inlet and fixValue(=1 atm) for outlet.
but this boundary condition calculate pd about 1 atm whereas pd must be little than pReff. (pd<<pReff) and i thinck this is wrong.
thanks alot
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Old   March 1, 2013, 03:54
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no body
pleasssssssssss
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Old   March 4, 2013, 19:22
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I think you ought to use buoyantPressure boundary condition for pd.
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