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November 26, 2015, 11:45
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Boundary conditions
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#1 |
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New Member
Join Date: Jul 2015
Posts: 18
Rep Power: 11  |
Hi, i've got a basic question.
When specifying plug flow for 2D flow, does one maintain the no slip condition at the boundaries? What's the penalty for not doing so, if any? |
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November 26, 2015, 12:02
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#2 |
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Senior Member
Filippo Maria Denaro
Join Date: Jul 2010
Posts: 6,896
Rep Power: 73 |
Actually, considering the grid corner in a structured grid you can never exactly say if it is either a wall or a flow node...
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November 26, 2015, 12:20
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#3 |
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New Member
Join Date: Jul 2015
Posts: 18
Rep Power: 11 |
Thanks for the reply.
Does that apply only to grid corners? I'm asking with regards to the top and bottom boundaries of 2D flow |
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November 26, 2015, 12:27
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#4 |
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Senior Member
Filippo Maria Denaro
Join Date: Jul 2010
Posts: 6,896
Rep Power: 73 |
for example, in a 2d channel, the 2 inlet corners are singularity points but top and bottom boundaries must be prescribed as wall therefore no-slip condition for viscous flows
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| plug flow |
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