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Old   March 21, 2004, 12:39
Default Tide angle problem when meshing
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Tudor Miron
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Hi, I'm having a problem creating a surface mesh for a car body. It is tide angles that cause the problem. How ever it's impossible to avoid it in CAD model if I want it to represent real car closely. For example when modelling rear underbody diffuser - it starts at shallow angle from flat bottom. So there's a tide (2.8deg) internal angle at start of diffuser side wall. It HAS to be there - what to do??? I was making a relatively fine mesh with MC on car body with 20mm lengh scale. Trying to put a Point MC at that tide angle with lengh scale 0f 0.1mm didn't help.... Please HELP!!! Thank you Ted
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Old   March 21, 2004, 17:27
Default Re: Tide angle problem when meshing
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Glenn Horrocks
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Hi Ted,

Are you using CFX-Build or ICEM CFD 4.CFX?

Glenn
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Old   March 22, 2004, 10:51
Default Re: Tide angle problem when meshing
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Tudor Miron
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Hi Glenn, I'm using CFX Build. I'd like to add to my question. I can still make a mesh when after warning message. Question is how bad it is for mesh quality and ultimately how does it effect results accuracy?

Thank you Ted
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Old   March 22, 2004, 17:43
Default Re: Tide angle problem when meshing
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Glenn Horrocks
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Hi Ted,

I've moved onto ICEM CFD 4.CFX now and am trying to purge CFX-Build from my mind. This means I can't help you with the meshing problem unfortunately. As for the warning message, the proof is in the pudding - have a look at the final mesh with CFX-Post and decided yourself whether the mesh is acceptable. It has a number of tools for analysing mesh quality.

Glenn
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Old   March 22, 2004, 18:24
Default Re: Tide angle problem when meshing
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Tudor Miron
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Thanks any way

Ted
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