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Wind Tunnel Meshing for CFD With Easily Changeable Model Position

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Old   March 20, 2020, 09:20
Default Wind Tunnel Meshing for CFD With Easily Changeable Model Position
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AEN
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Aaron
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I'm confident this is a simple question, but I'm finding a lack of clear documentation - I apologize in advance.

I'm working on meshing a wind tunnel; the empty case is simple - create mesh, check quality, run CFD. However, suppose I want to input a model in the test section and change its orientation (during discrete CFD runs) to understand the effect over multiple angles of attack or other parameters. What is the most effective (cost and accuracy both considered) method to do this? The overall geometry is roughly 20 m long and the region I would want to rotate/change would be ~2m.

Additional information:
CFD Package: Fluent
Mesh Target Size: < 60M, preferred under 40M
Nominal Empty Tunnel Mesh: 20M

Happy to provide more information as needed.

Last edited by AEN; March 23, 2020 at 07:08.
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Old   April 2, 2020, 09:27
Default Its not clear :) !!
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Mahmoud Aboukhedr
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Hay,
I would really like to help you, but its not clear what is your question in the first place.
The direct answer will be Morphing if I understand your question, yet am not so sure what you have and what you are after.

For example;
If you have a wind tunnel with a wing representation inside the tunnel at zero angles of attack; first you need to mesh your model and the baseline mesh.
The by using morphing in ANSA you can change the angle of attack without re-meshing.

It will be good if you can share an example model to look at.
Best,
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Old   April 9, 2020, 11:30
Default I think you answered my question!
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AEN
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Aaron
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Hi Mahamoud.

I think you answered my question. I can't share more right now, but if I get more approval to do so, I will.

The morphing tool looks like exactly what I was looking for - I knew it had to be here, I just didn't know the name of it.

Thanks again!
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