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Fluent UDF particle wall distance

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Old   October 22, 2020, 14:17
Default Fluent UDF particle wall distance
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L.A.Isanka
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Hello!

I am working on a problem where I need to calculate the particle wall distance from each particle position.
Can anyone please tell me how to find the distance from the particle position to the wall boundary?
Is there a specific macro I can use for that?

Thank you!
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Old   October 23, 2020, 04:06
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Alexander
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I don't know any specific macros or approaches for that, but what you can do is:
1. make a loop over particles
2. get coordinate of each particle
3. calculate the distance to the wall (cause you know coordinates of wall)
hope this simple approach will work for you
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Old   November 20, 2020, 11:34
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L.A.Isanka
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Thank you for your reply.

do you know how to get the minimum distance from particle to boundary wall?

I want to get particle wall distance inside a define_bodyforce macro, to calculate the body force.
Is there a direct command other than finding the minimum distance via coordinates?

Thank you!
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