NSRDS functions, liquid properties

mystix · August 19, 2010, 08:37

Hallo Foamers,

the liquid properties of C10H22 are defined in the file
.../src/thermophysicalModels/liquids/C10H22/C10H22.H

The density is calculated with the NSRDS function 5 in
.../src/thermophysicalModels/thermophyicalFUnctions/NSRDSfuntions/NSRDSfunc5/NSRDSfunc5.H

Here it seems, that the density is only dependent on temperature, and not on pressure. Is the pressure dependency of density taken into account in OpenFoam?

All answers welcome.
Markus

chandramurthy · August 19, 2010, 12:05

I worked on kerosene(C12H26). i had the similar doubt when i started the work.
In the present 1.7.x code, the density depends only on temperature. i don't think it is too difficult to make it function of both T & P.

mystix · August 20, 2010, 05:10

Quote:

i don't think it is too difficult to make it function of both T & P.

Do you have any suggestions how this could be done?

August 19, 2010, 08:37	NSRDS functions, liquid properties	#1
mystix New Member Join Date: Jun 2010 Posts: 25 Rep Power: 4	Hallo Foamers, the liquid properties of C10H22 are defined in the file .../src/thermophysicalModels/liquids/C10H22/C10H22.H The density is calculated with the NSRDS function 5 in .../src/thermophysicalModels/thermophyicalFUnctions/NSRDSfuntions/NSRDSfunc5/NSRDSfunc5.H Here it seems, that the density is only dependent on temperature, and not on pressure. Is the pressure dependency of density taken into account in OpenFoam? All answers welcome. Markus

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August 19, 2010, 12:05		#2
chandramurthy Member MSR CHANDRA MURTHY Join Date: Mar 2009 Posts: 30 Rep Power: 6	I worked on kerosene(C12H26). i had the similar doubt when i started the work. In the present 1.7.x code, the density depends only on temperature. i don't think it is too difficult to make it function of both T & P.