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Can Fluent modify the wall function by UDF?

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Old   January 11, 2006, 23:33
Default Can Fluent modify the wall function by UDF?
Andy Cong
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Just a question.

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Old   January 15, 2006, 12:31
Default Re: Can Fluent modify the wall function by UDF?
Himanshu Paliwal
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andy i am facing a similar problem i.e if the wall shows a pulsating motion i.e. expansion and contraction and this propogates as a wave i.e if the boundary coordinates of wall are r = A(1 + cos ( 2*pi *(Z-ct)/ λ )) where A is the amplitude Z is the length of the track and c is the wave speed. This can happen if the wall is elastic in nature something like blood vessels or the food pipe i.e. oesophagus.
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Old   January 18, 2006, 06:35
Default Re: Can Fluent modify the wall function by UDF?
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You can find in litterature the implementation of the v2f model in fluent. I think they modified the wall functions...have a look.

Good luck
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