Here is the 'topic' I submitted some days ago. Because I have to use an emispherical and thin solid dome, immersed in a fluid domain, and it is made by conductive plastic material (it is obviously orthotropic), I didn't found, reading documentation, any indication about how to build a 'Local Coordinate System' So, I should like to know if X Y and Z axis (indicated in Material Database panel) are global or local. If they are global, this is a serious limit to this very fine software; if not, I really will appreciate any help to resolve this issue. the answer (by Royce Abel- Autodesk) was: The X, Y, and Z material properties are based on the global coordinates and you cannot define local material properties. This would be an excellent comment to add to the idea station. So, now I ask to insert in CFD the ability to manage Local Coordinate System for Solid Material definition (but not only) Many thanks Piero
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