Dynamic stall modelling of the S809 aerofoil and comparison with experiments

被引:98
作者
Gupta, Sandeep [1 ]
Leishman, J. Gordon [1 ]
机构
[1] Univ Maryland, Dept Aerosp Engn, Glenn L Martin Inst Technol 3181, College Pk, MD 20742 USA
关键词
dynamic stall; Leishman-Beddoes model; free vortex wake method; S809; aerofoil;
D O I
10.1002/we.200
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
An analysis of dynamic stall for the S809 aerofoil has been performed in conjunction with the Leishman-Beddoes dynamic stall model that was modified for wind turbine applications. Numerical predictions of the lift, drag and pitching moment coefficients were compared with measurements obtained for an oscillating S809 aerofoil at various reduced frequencies, mean angles of attack and angle of attack amplitudes. It was found that the results using the modified model were in good agreement with the experimental data. Hysteresis in the aerodynamic coefficients was captured well, although the drag coefficient was slightly underpredicted in the deep stall flow regime. Validation against the Experimental data showed overall good agreement. The mathematical structure of the model is such that it can be readily incorporated into a comprehensive analysis code for a wind turbine. Copyright (C) 2006 John Wiley & Sons, Ltd.
引用
收藏
页码:521 / 547
页数:27
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