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Why Unreasonable velocity vector near the wall? Please check the picture included

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Old   June 15, 2014, 21:51
Default Why Unreasonable velocity vector near the wall? Please check the picture included
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Shogan
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Guys,

How is your World Cup watching? Argentina and Bosnia and Herzegovina just play a awesome one!!!!

I run a simulation of helium leakage in a room. However, I found there is unreasonable velocity vector near the wall. Especially the ground and the ceiling.
The velocity vector is normal inward into the wall. This is not right. And I don't know why?
Below is the cross view of the domain. and zoom of the ground area.

Please let me know of you idea. I am stuck here and my boss is pushing me...... Oppessssssss





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Old   June 15, 2014, 22:01
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blackmask will become famous soon enough
You should show us the boundary condition settings for ground and ceiling.
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Old   June 15, 2014, 22:31
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Quote:
Originally Posted by blackmask View Post
You should show us the boundary condition settings for ground and ceiling.
Thanks for reminding.
The ground and ceiling are all set as wall. Temperature are all uniform in my simulation 294.14k.





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