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Old   May 28, 2003, 05:13
Default Translating frame of reference
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blair
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Hi, I am trying to model a body moving through a fluid domain. I have already got results by modelling the body as stationary and defining inflows into the domain. However ideal I would like to give the body itself a velocity, using a moving mesh. It seem that this would be possible using a moving coordinate system... however I have no clue how to achieve this. Any suggestion would be gratefully recieved. Thank you Blair
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Old   May 28, 2003, 05:14
Default Re: Moving frame of reference
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blair
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Sorry, I think this title is more appropriate for my original post
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Old   May 28, 2003, 18:13
Default Re: Moving frame of reference
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Glenn Horrocks
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Hi Blair,

Which code are you using? But you definitely can do this in CFX4, and you should be able to do this using the moving grid beta feature in CFX5.

Glenn
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Old   June 2, 2003, 07:13
Default Re: Moving frame of reference
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blair
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I am using CFX5.5.1

I have not been able to find the moving grid beta feature in any of the help files. I would greatly appreciate any suggestions.

blair
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Old   June 2, 2003, 18:51
Default Re: Moving frame of reference
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Glenn Horrocks
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Hi Blair,

It is not documented because it is a beta feature, and hence not guaranteed to be correctly implemented. I understand that it is planned to be part of CFX 5.7, which is quite some time off release yet!

I have emailed you a def file which demonstrates moving grids in CFX5.5.1/5.6. Be warned - as it is a beta feature it is not guaranteed to be accurate, and has some weird quirks - it is not for inexperienced users of CFX. But I have managed to do some interesting work using it, so if you're keen give it a go.

Glenn
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