Temperature dependent material properties

stuart230588 · November 21, 2013, 08:06

Hi,

I am new to CFX and want to enter temperature dependent material properties for density, viscosity, specific heat, thermal conductivity and electrical conductivity.

I know that this can be done in Fluent using UDFs but can't find how to do this in CFX.

My temperature dependent properties have a number of reference temperatures so the polynomial function isn't really an option.

Can anyone help?

Thanks

ghorrocks · November 21, 2013, 17:36

Have a look at the tutorials for setting up new materials. You can specify variable properties with CEL expressions (eg polynomials) or interpolation between points, or a user fortran routine.

November 21, 2013, 08:06	Temperature dependent material properties	#1
stuart230588 New Member Join Date: Oct 2013 Posts: 25 Rep Power: 13	Hi, I am new to CFX and want to enter temperature dependent material properties for density, viscosity, specific heat, thermal conductivity and electrical conductivity. I know that this can be done in Fluent using UDFs but can't find how to do this in CFX. My temperature dependent properties have a number of reference temperatures so the polynomial function isn't really an option. Can anyone help? Thanks

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November 21, 2013, 17:36		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,870 Rep Power: 144	Have a look at the tutorials for setting up new materials. You can specify variable properties with CEL expressions (eg polynomials) or interpolation between points, or a user fortran routine.