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June 28, 2013, 09:00 |
6 DOF UDF touch wall
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#1 |
New Member
Join Date: Mar 2013
Posts: 5
Rep Power: 13 |
I'm simulating a particle in a tube with a flow using 6 DOF UDF. The problem I've got is that Fluent gives me an error (negative cell found) when this rigid particle touches the wall of the tube. I don't know if there is any solution. Thanks
And if I define two different rigid particles, if I will get the same error when they touch each other. |
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June 28, 2013, 16:55 |
Answer
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#2 |
Member
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Hi mate,
As far as I know Fluent can not model strike of two walls with 6DoF. You see, this process is rather mechanical.
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June 28, 2013, 18:23 |
Thanks
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#3 |
New Member
Join Date: Mar 2013
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Thanks for your answer.
Just say that I don't want to smash a particle against a wall, I've got a curve pipe and I want to see how particles with different shapes behave. Is not possible with fluent? When the particle touches the wall I get always the error. Thanks again mate |
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June 29, 2013, 06:32 |
Reanswer
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#4 |
Member
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I have already tried what you want but it seems impossible with fluent.
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March 27, 2015, 22:38 |
Same situation, different question
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#5 |
New Member
Wei Liu
Join Date: Mar 2015
Posts: 5
Rep Power: 11 |
Hi
I want to simulate a similar case that a particle float in a vertical tube. The solver can give right pressure contour map if the dynamic mesh is off while pressure will be a mess if it is on. That is to say, with wrong pressure, buoyancy cannot be true. I hope to hear from you, Thank you! |
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March 29, 2015, 15:58 |
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#6 |
Member
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Attach some pictures or else.with this information i can't help.
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March 31, 2015, 00:08 |
Case pictures
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#7 |
New Member
Wei Liu
Join Date: Mar 2015
Posts: 5
Rep Power: 11 |
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Tags |
6 dof, udf error, wall error |
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