Simcenter FLOEFD How to model anisotropic conductivity for non aligned with axis cylindrical geometry
2024-01-08T17:14:49.000-0500
FLOEFD for Creo
FLOEFD (Standalone)
FLOEFD for Catia V5
FLOEFD for NX
FLOEFD for Solid Edge
Simcenter FLOEFD SC
Summary
How to model anisotropic conductivity for non aligned with axis cylindrical geometry
Details
If the thermal conductivity type of the selected solid material is not Isotropic, you can specify the thermal conductivity directions:
- If the model component the solid material is assigned to is not a thin plate, each direction must be parallel to one of Global Coordinate System axes.
- The thermal conductivity directions in thin plates do not need to be parallel to the Global Coordinate System axes. A thin plate is a body having two parallel planar faces with dimensions substantially greater than the distance between them
Note: even in thin plates only the Biaxial/Axisymmetric anisotropy will work when not aligned with global CS directions.
The workaround for cylindrical part is to slice the geometry with the anisotropic material into chunks that can be considered "flat" or "thin".
We need to divide the model concentrically (jellyroll) instead of slicing it along the axis and assign the axial conductivity as an isotropic material and the radial conductivity as a thermal contact resistance between the concentric cylinders.
For other information related to how to model non-aligned and flexible bodies or PCBs in Simcenter FLOEFD, please refer to the article below:
https://support.sw.siemens.com/knowledge-base/MG611071