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-   -   buoyantFoam without pressure-density coupling (https://www.cfd-online.com/Forums/openfoam-programming-development/69711-buoyantfoam-without-pressure-density-coupling.html)

braennstroem November 2, 2009 04:25

buoyantFoam without pressure-density coupling
 
Hi,

I would like to adjust the current buoyantPisoFoam solver, so that rho is independent of the current pressure. I thought, it would be easiest to adjust in equationOfState the perfectGas files (I included the base pressure) ...

so basically the calculation in perfectGasI.H for rho looks like:

return p0_/(R()*T);

unfortunately, it seems to have no influence on the calculation.

The thermal properties are

thermoType hRhoThermo<pureMixture<constTransport<specieThermo <hConstThermo<perfectGas>>>>>;

and the mixture is adjusted with an additional entry for the base-pressure p0_.

Would be nice, if anyone has some suggestions.

Fabian

fabian_korn March 9, 2010 04:42

Hi,

i have a similar problem, did you have any success with changing the buoyant solver?

braennstroem March 11, 2010 14:59

Hello Fabian,

no... :-(

Fabian


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