Wind Turbine Blade Tip Flow and Noise Prediction by Large-eddy Simulation

[+] Author and Article Information
Oliver Fleig, Makoto Iida

The University of Tokyo, Graduate School of Engineering, Department of Mechanical Engineering, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8656, Japan

Chuichi Arakawa

The University of Tokyo, Graduate School of Interfaculty Initiative in Information Studies, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8656, Japan

J. Sol. Energy Eng 126(4), 1017-1024 (Nov 18, 2004) (8 pages) doi:10.1115/1.1800551 History: Received March 31, 2004; Revised July 05, 2004; Online November 18, 2004
Copyright © 2004 by ASME
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Surface pressure spectra on suction side near the trailing edge
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Convection of an acoustic pressure pulse (T=40)
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Grid of airfoil section
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Limiting streamlines for actual tip shape
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Definition of cross sections
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Vorticity ωx isosurfaces
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Sound pressure level at points A,B
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Instantaneous acoustic pressure perturbation field on S2.
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Sound pressure level—simulation results




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