buoyantFoam without pressure-density coupling

braennstroem · November 2, 2009, 05:25

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, 05:42

Hi,

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

braennstroem · March 11, 2010, 15:59

Hello Fabian,

no... :-(

Fabian

November 2, 2009, 05:25	buoyantFoam without pressure-density coupling	#1
braennstroem Senior Member Fabian Braennstroem Join Date: Mar 2009 Posts: 407 Rep Power: 19	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

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March 9, 2010, 05:42		#2
fabian_korn New Member Fabian Korn Join Date: Mar 2009 Location: Heilbronn, Germany Posts: 21 Rep Power: 17	Hi, i have a similar problem, did you have any success with changing the buoyant solver?

March 11, 2010, 15:59		#3
braennstroem Senior Member Fabian Braennstroem Join Date: Mar 2009 Posts: 407 Rep Power: 19	Hello Fabian, no... :-( Fabian