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Validating OF, turbulent flow over flat plate |
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July 3, 2012, 05:29 |
Validating OF, turbulent flow over flat plate
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Thilo Michels
Join Date: Oct 2011
Posts: 11
Rep Power: 15 |
Hi!
I would like to calculate the turbulent flow over a flat plate by using pisoFOAM. My main concern is to get a correct boundary layer. Unfortunately I don't have a strong cfd background and I'm looking for some advices about what to change in my model. To give you a start, my mesh sizes are: normal to boundary: y+ 1.0 - 20 with 3 cells in the range y+ 0 - 10 flwo direction: y+ = 20 normal to flow direction: y+ = 7 The domain is rectangular, the sice is: 1x1x0.1 m In my first model I used a turbulent flow at the inlet to get a boundary layer. Unfortunately this doesn't give me a good boundary layer as the velocities near the wall are to high. Can someone give me a hint about how what I have to change to get a fully resolved boundary layer? Does someone has experience about how long my model should be to get a boundary layer which is comparable with the boundary layer of a channel flow? Thank you very much in advance. Thilo |
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