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-   -   OpenFOAM- Low Mach Number - boundary (http://www.cfd-online.com/Forums/openfoam/113854-openfoam-low-mach-number-boundary.html)

tmu February 28, 2013 01:57

OpenFOAM- Low Mach Number - boundary
 
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

tmu March 1, 2013 03:54

no body
pleasssssssssss

deji March 4, 2013 19:22

I think you ought to use buoyantPressure boundary condition for pd.


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