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how to give boundary conditions:-calculated type of primitive boundary field

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Old   March 13, 2010, 02:39
Default how to give boundary conditions( primitive boundary field)
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sunil
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hi,
i am doing acoustic analysis of a combustion chamber. i have three differential equations relating acoustic pressure, velocity and density (got by mass, momentum and energy equations after deducting from steady state equations, the actual equations).
now i have to solve these equation using openfoam with appropriate boundary conditions. At the burning surface , i have a relation between normal acoustic velocity and acoustic pressure, as P-dess/V-dess=constant. How to implement this boundary condition in openfoam syntax. Please help me.

Last edited by suniljain; March 17, 2010 at 05:59.
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Old   March 20, 2010, 01:19
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Sandy Lee
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http://www.cfd-online.com/Wiki/Aero-acoustics_and_noise

http://www.cfd-online.com/Wiki/Combustion
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