CFD Online Discussion Forums - anisotropic material in CFX R13.0

Quote:

Originally Posted by serezhkin (Post 390635)

In case anyone still needs this, here's the ccl I received from ANSYS customer support:

LIBRARY:
&replace MATERIAL: Anyso
Material Group = User
Option = Pure Substance
Thermodynamic State = Solid
PROPERTIES:
Option = General Material
EQUATION OF STATE:
Density = 2.645E3 [kg m^-3]
Molar Mass = 1 [kg kmol^-1]
Option = Value
END
REFERENCE STATE:
Option = Specified Point
Reference Specific Enthalpy = 0 [J kg^-1]
Reference Temperature = 25 [C]
END
SPECIFIC HEAT CAPACITY:
Option = Value
Specific Heat Capacity = 1.36E3 [J kg^-1 K^-1]
END
THERMAL CONDUCTIVITY:
Option = Orthotropic Cartesian Components
Thermal Conductivity X Component = 0.001 [W m^-1 K^-1]
Thermal Conductivity Y Component = 500 [W m^-1 K^-1]
Thermal Conductivity Z Component = 5 [W m^-1 K^-1]
#Thermal Conductivity = 175 [W m^-1 K^-1]
AXIS DEFINITION:
Option = Coordinate Axis
Rotation Axis = Coord 0.3
END
END
END
END
END

Hi, regarding post number #11 in this thread:

Here, the thermal conductivity has been defined in x,y and z direction, respectively. But why again thermal conductivity is defined in # statement? Is it average thermal conductivity? If so average is 168.33 [W m^-1 K^-1] and not 175 175 [W m^-1 K^-1].

I am facing same issue, in which I have use a solid material in cfx which is an-isotropic considering varying thermal conductivity in x,y,z.

To quote #11
" THERMAL CONDUCTIVITY:
Option = Orthotropic Cartesian Components
Thermal Conductivity X Component = 0.001 [W m^-1 K^-1]
Thermal Conductivity Y Component = 500 [W m^-1 K^-1]
Thermal Conductivity Z Component = 5 [W m^-1 K^-1]
#Thermal Conductivity = 175 [W m^-1 K^-1] "