Effect of Turbulence Intensity on Airfoil Flow: Numerical Simulations and Experimental Measurements

LI Shao-wu; WANG Shu; WANG Jian-ping; MI Jian-chun

doi:10.3879/j.issn.1000-0887.2011.08.007

Volume 32 Issue 8

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LI Shao-wu, WANG Shu, WANG Jian-ping, MI Jian-chun. Effect of Turbulence Intensity on Airfoil Flow: Numerical Simulations and Experimental Measurements[J]. Applied Mathematics and Mechanics, 2011, 32(8): 964-972. doi: 10.3879/j.issn.1000-0887.2011.08.007

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Effect of Turbulence Intensity on Airfoil Flow: Numerical Simulations and Experimental Measurements

doi: 10.3879/j.issn.1000-0887.2011.08.007

State Key Laboratory on Turbulence and Complex Systems, Peking University, Beijing 100871, P. R. China;

Received Date: 2011-02-21
Rev Recd Date: 2011-05-08
Publish Date: 2011-08-15

Abstract

Abstract

Effect of the turbulence intensity of the oncoming stream on the aerodynamic characteristics of NACA-0012 airfoil was investigated by a direct numerical simulation.The numerical results were found to be consistent with the experimental measurements.Based on the finite spectral QUICK scheme,the simulation gets the high accuracy results.Both the simulation and experiment reveal that the airfoil stall does not exist for low turbulence intensity,however,occurs when the turbulence intensity increases sufficiently.Besides,the turbulence intensity has a significant effect on both the airfoil boundary layer and the separated shear layer.
- finite spectral method,
- turbulence intensity,
- boundary layer,
- shear layer,
- lift force,
- drag force,
- airfoil stall

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References(18)

References

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