How to set a specific pressure Value on a wall Using expression -- CFD Online Discussion Forums

July 4, 2013, 04:41	How to set a specific pressure Value on a wall Using expression	#1
topsedar New Member Hossein Join Date: Apr 2013 Posts: 20 Rep Power: 13	HI I am modeling a Journal Bearing and I decide to Use SommerFeld Boundary condition on Journal. Definition of SommerFeld Boundary condition : This Boundary Condition Sets all values of negative gauge pressures to the value of the operating pressure. Thus, the negative, gauge pressures on the Surface of journal are set to zero when negative values occur. I know In The FLUENT, DEFINE_ON_DEMAND macro is used to definition this Boundary Condition. How Could I set This Boundary Condition on the Surface of Rotor (Journal)?? Thanks in advanced.

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