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modeling flow around aerodynamic profile with using immersed solid |
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June 8, 2013, 13:36 |
modeling flow around aerodynamic profile with using immersed solid
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#1 |
New Member
Join Date: Jun 2013
Posts: 3
Rep Power: 12 |
Hi everyone!
I try to modeling flow around aerodynamic profile with using immersed solid. I did simulates with change: - Momentum Sources (global) ( 7 to 50) - Boundary Distance (0.7 to 3 mm for my mesh 0.5 mm ) and still nothing, the results (flow field and lift, drag force) are wrong. How use immersed solid to aerodynamic simulation? Last edited by yutangg; June 8, 2013 at 17:11. |
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June 9, 2013, 03:38 |
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#2 |
Senior Member
hamed
Join Date: Apr 2009
Posts: 148
Rep Power: 17 |
it is really important to have inflated meshes near wall boundaries.did you use this type of mesh ?
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June 10, 2013, 15:38 |
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#3 |
New Member
Join Date: Jun 2013
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thank you for your answer
yes, i tried out several types of nets but still i can't observe good the boundary layer |
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June 10, 2013, 20:49 |
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#4 |
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Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
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What Re and/or Ma number is the flow? What y+ are you using?
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June 11, 2013, 13:17 |
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#5 |
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it's a laminar flow 800 Re and y+ < 2
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June 11, 2013, 20:54 |
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#6 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,696
Rep Power: 143 |
y+ has no meaning for laminar flows.
If this is a laminar model then you might be able to get this to work with immersed solids. It is likely to be quite grid sensitive - have you done a mesh sensitivity check? |
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