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-   -   defining the intial Pressure in SIMPLE model (http://www.cfd-online.com/Forums/openfoam-post-processing/95628-defining-intial-pressure-simple-model.html)

ahmed_khatibs December 26, 2011 02:23

defining the intial Pressure in SIMPLE model
 
Dear All,
In SIMPLE model how initial Pressure is define.
thak u

alberto December 26, 2011 13:02

It is irrelevant, since you are solving for an incompressible flow. Set it equal to the reference value (the one you fix with a fixedValue BC for the pressure, or in the SIMPLE dictionary).

Best,

alquimista December 26, 2011 16:54

In incompressible solvers the pressure has to be normalized with the density (the dimensions of pressure become pressure divided by density [0 2 -2 0 0 0 0]).


p* = p / rho
(kg/(ms)) / (kg/m) = m / s

ahmed_khatibs December 27, 2011 02:04

thats great ... thank u .... this will helps me ...


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