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Complicated CAD import, how do I find fluid volume?

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Old   May 31, 2009, 11:52
Default Complicated CAD import, how do I find fluid volume?
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David
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Hi ,
I have searched this forum, the web, and the help files of CFX extensively but have been unable to find helpful results. I am importing a CAD file and from this CAD file, I must generate a mesh of the liquid volume, not the volume of the solid itself, in order to perform computational fluid analysis using the CFX suite.
In ANSYS workbench, I have tried to use combinations of add material and cut material, in conjunction with a larger solid block, using the Design Modeler software. However, this is quite cumbersome, and I would imagine that there is a simpler way to do this.
If someone could help me find the liquid volume using this simpler way, I would be very much grateful.


Thank you for your time,
David
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Old   May 31, 2009, 19:01
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Glenn Horrocks
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Hi,

Use the fill command in Workbench.

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Old   June 1, 2009, 03:40
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David
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I have tried the fill command as well, but for some reason, every time I use it I receive an error regarding the programs inability to heal wounds.

"Cannot heal patch/wounds from removed faces. Context: Geometry Engine, while generating feature Fill1. Error: Fill operation failed. Context: Fill Feature Fill1."

I have tried creating simple geometries, with the goal of obtaining a successful fill, but anything more complicated than a tube results in an error.

What am I doing wrong?
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Old   June 1, 2009, 18:46
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Hi,

There are some tricks to getting some of these commands to work - and I am not going to write a thesis on how to do it (maybe I am just lazy). Do lots of examples, do some CFX training is all I can recommend. Also there are several ways of doing it in CFX. Fill is one way, cutting bodies is another. You can also use the CAD import cleanup stuff.

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