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Low Lift Coefficient in ground simulations of 2D Airfoil (URGENT) |
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April 7, 2021, 06:56
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Low Lift Coefficient in ground simulations of 2D Airfoil (URGENT)
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#1 |
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New Member
Umayr
Join Date: Apr 2021
Posts: 2
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Hi there, I am university student and in major need of help. I'm running 2d simulations on a 30P30N Airfoil which I've simulated in free flight and now I have run in ground simulations with a h/c of 1. My lift values for ground are lower than my free flight simulations for whatever reason and I cannot figure it out despite many changes. Can anyone assist? These are my results:
FREE FLIGHT Alfa CL - CD - CM 0 - 2.1414 0.050072 0.22063 4 - 2.6703 0.050454 0.09339 8 - 3.1056 0.064482 -0.03591 12 - 3.3856 0.093385 -0.16095 IN GROUND Alfa CL - CD - CM 0 - 2.0035 0.044599 0.20268 4 - 2.3253 0.036799 0.07713 8 - 2.6291 0.052558 -0.04001 12 - 2.8262 0.079061 -0.14552 I've attached some pictures of basic settings/reference values: Screenshot 2021-04-07 at 10.52.49.jpg Screenshot 2021-04-07 at 10.53.22.jpg Screenshot 2021-04-07 at 10.53.50.jpg I would really appreciate some urgent help as my degree depends on it. Thank you so much for your time. |
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April 7, 2021, 07:02
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#2 |
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New Member
Umayr
Join Date: Apr 2021
Posts: 2
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April 25, 2021, 05:51
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#3 |
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New Member
Venkat
Join Date: Apr 2019
Location: Bengaluru
Posts: 7
Rep Power: 7 |
How does your mesh settings look like?
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| Tags |
| 2d airfoil, 30p30n, ansys, ground effect |
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