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Old   October 7, 2012, 13:05
Default Q: Airfoil Low Reynolds
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SANDRA BENVENUTO
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I am design wind turbine 1KW. So I need to simulate predict airfoil in low reynolds. I used NACA 0012 for test. I want to know:
1/ In low reynolds you will use unsteady or steady for time.
2/ Why did my coefficient drag decrease follow time when I use k-epsilon in condition unsteady? I think it will oscillate at a point.
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Old   October 7, 2012, 16:40
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Syavash
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Quote:
Originally Posted by mashiro View Post
I am design wind turbine 1KW. So I need to simulate predict airfoil in low reynolds. I used NACA 0012 for test. I want to know:
1/ In low reynolds you will use unsteady or steady for time.
2/ Why did my coefficient drag decrease follow time when I use k-epsilon in condition unsteady? I think it will oscillate at a point.

1- You should use steady scheme to analyze your problem.
2-Oscillation during solution convergence is a common thing for aerodynamic coefficients.

Bests.
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Old   October 8, 2012, 07:51
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How low is your Re...? You might be better to use a Low Re k-e model.
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