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[DesignModeler] A beginner need a help

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Old   January 2, 2013, 09:39
Default A beginner need a help
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Hi every one,

I am trying to simulate a heat exchanger of a staggered arrangement via CFX, the problem is that I don't know how to determine the thickness of my model.

I would be grateful if you can help me. I am attaching an image for my model to clarify the issue.

Any comments will be appreciated.
Thanks so much.
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File Type: jpg Geometry_20130102_170033.jpg (19.3 KB, 16 views)
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Old   January 7, 2013, 05:16
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Josef Runsten
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If you have symmetry boundary conditions on both sides and one cell across the thickness it shouldn't matter for results, but for convergence I think it is convenient to have a much thinner model than what you are showing.

"For the planar mesh the extrusion should be approximately equal to the smallest element edge length in the model"
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