1 Reply Latest reply on Mar 14, 2012 6:22 PM by dink dinkler

Porous Media - Unidirectional: Having trouble defining new direction/coordinate system

dink dinkler Mar 14, 2012 5:17 PM

Hey guys/gals,

I am working with a porous media assembly model that I am looking to do a full scope analysis run on and there are a few identical parts that have a uniaxial porous media I am modeling within.

Here is the issue -

1 - The porous media faces are not parallel, so I cannot get away with just employing the "Global Coordinate System"

2 - I cannot use symmetry to just be able to use one of these porous media and call it a day. In fact I have set up symmetry as far as I possibly can.

3 - When I select the "Global Coordinate System" under the "Edit Definition" option, I don't seem to have any sort of opportunity to select a different coordinate system.

Help?

Re: Porous Media - Unidirectional: Having trouble defining new direction/coordinate system

dink dinkler Mar 14, 2012 6:22 PM (in response to dink dinkler)

Was able to get in touch with someone that was able to help.

Unfortunately, the default coordinate system of a part is not permitted as an option once you are in an assembly level.

What I needed to do was just define a new coordinate system at the part level:

Insert>Reference Geometry>coordinate system

THEN in order to maintain a porosity normal to the face I wanted, I had to define each porous part as a separate porous media rather than all under one definition.
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