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Boundary condition for wind tunnel (subsonic) |
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April 17, 2017, 00:57 |
Boundary condition for wind tunnel (subsonic)
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Join Date: Jun 2015
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Hello,
I'm trying to set up a simulation domain for wind tunnel tests comparison. In the model tests, the foil (actually a marine rudder) was installed on the ground (floor). The side walls and ceilings of the tunnel was considered to have litter effect on the flow around the foil. For the simulation domain, what boundary condition should I use for the ground? I think by right it should be wall (no-slip). Will this require very fine mesh on the whole floor? I have tried both wall (no-slip) and symmetry for the ground floor, the results were quire similar. For this case, what will be the actual difference among slip wall, no-slip wall and symmetry conditions for the ground floor. In terms of accuracy and computational cost, which one would you suggest? Many thanks. |
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Tags |
airfoil 3d, boundary condition, lift and drag, wind tunnel |
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