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#1 |
New Member
Join Date: Apr 2014
Posts: 17
Rep Power: 13 ![]() |
What's the use of boundary condition in the intersection of two mesh blocks?
If the fluid can pass through it freely, which BC type should I choose? |
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#2 |
New Member
Maxime
Join Date: Mar 2014
Posts: 16
Rep Power: 13 ![]() |
You should use symmetry BC (this is the default BC).
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#3 |
Senior Member
Jeff Burnham
Join Date: Apr 2010
Posts: 204
Rep Power: 18 ![]() |
FLOW-3D resets the boundary condition between blocks automatically to "inter-block" type. You can't set this yourself, FLOW-3D does it for you. Using 'symmetry' prevents some warning messages about resetting the condition.
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#4 |
New Member
Join Date: Feb 2014
Posts: 8
Rep Power: 13 ![]() |
I wonder if you could tell me what the meaning of BC Grid Overlay
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#5 |
New Member
Join Date: Apr 2014
Posts: 17
Rep Power: 13 ![]() |
thank you all. Maybe I haven't read the manual carefully enough
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#6 |
Senior Member
Jeff Burnham
Join Date: Apr 2010
Posts: 204
Rep Power: 18 ![]() |
Grid Overlay boundaries are only used in Restart simulations. They interpolate velocity from an existing simulation results. You can use them to change the mesh but still continue from the old simulation results.
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