[ZahirUZ]

Hey all,
I am trying to simulate a battery cooling systems in CFX 16.0 and it is required to input the thermal conductivity of the cell as an anisotropic property.
Can someone direct me on how to implement anisotropic thermal conductivity. The thermal conductivity of the Li-ion cell is to be assigned as 0.32 W/m.K in the radial direction and 30 W/m.K in the axial direction, so I would have to employ a polar co-ordinates input.
I already tried tweaking the CCL of the material as given in the link http://www.eureka.im/2990.html . But when I import the edited CCL back to CFX, I get the following error message:
The parameter "Option" in "/LIBRARY/MATERIAL:Steel/PROPERTIES/THERMAL CONDUCTIVITY" has the value "Orthotropic Cylindrical Components". This does not match any of the allowed values: "Value, Kinetic Theory Model".
Is there any possible way to implement this successfully?

[ghorrocks]

This has been discussed many times on the forum. Do a search of the CFX forum for anisotropic thermal conductivity.

[ZahirUZ]

Originally Posted by ghorrocks

This has been discussed many times on the forum. Do a search of the CFX forum for anisotropic thermal conductivity.

Sir, I have tried the suggestions from the previous discussion. Many have suggested suppressing the cited error message. Can you comment on the credibility?
And also now I seem to have an issue trying to assign the new anisotropic material into the solid domain. I get the following error message:

The parameter "Material" in "/FLOW:Flow Analysis 1/DOMAIN: Default Domain/SOLID DEFINITION:Solid 1" has the value "AnisoMaterial". This does not match any of the allowed values: "Aluminium, Copper, Steel".

And I can't find anisotropic material in the material selection box. Kindly clarify.

[urosgrivc]

I have exactly the same problem, (Ansys 19.0)

Has anybody managed to solve it?


How to make this work?

THERMAL CONDUCTIVITY :
Option = Orthotropic Cartesian Components
Thermal Conductivity X Component = `. [W m^-1 K^-1]
Thermal Conductivity Y Component = ` [W m^-1 K^-1]
Thermal Conductivity Z Component = `. [W m^-1 K^-1]
END

When I change it in ccl of the material than the cfx doesent want to accept this material anymore


If you suppress the error messages
Everything seems to work ok accordingly to OUTfile
in The OUTfile the chosen material and its orthotropic properties are ok,
it bothers me that cfxpre still shows the wrong material as it was changed due to error

[Opaque]

It is a beta feature, and it is not supported in the UI.