刘小兵, 张海东, 王彦彪. 宽高比为5的矩形断面梁气动力展向相关性研究[J]. 工程力学, 2015, 32(增刊): 50-54. DOI: 10.6052/j.issn.1000-4750.2014.05.S007
引用本文: 刘小兵, 张海东, 王彦彪. 宽高比为5的矩形断面梁气动力展向相关性研究[J]. 工程力学, 2015, 32(增刊): 50-54. DOI: 10.6052/j.issn.1000-4750.2014.05.S007
LIU Xiao-bing, ZHANG Hai-dong, WANG Yan-biao. STUDY ON SPANWISE CORRELATION OF AERODYNAMIC FORCE OF RECTANGULAR CYLINDER WITH ASPECT RATIO 5[J]. Engineering Mechanics, 2015, 32(增刊): 50-54. DOI: 10.6052/j.issn.1000-4750.2014.05.S007
Citation: LIU Xiao-bing, ZHANG Hai-dong, WANG Yan-biao. STUDY ON SPANWISE CORRELATION OF AERODYNAMIC FORCE OF RECTANGULAR CYLINDER WITH ASPECT RATIO 5[J]. Engineering Mechanics, 2015, 32(增刊): 50-54. DOI: 10.6052/j.issn.1000-4750.2014.05.S007

宽高比为5的矩形断面梁气动力展向相关性研究

STUDY ON SPANWISE CORRELATION OF AERODYNAMIC FORCE OF RECTANGULAR CYLINDER WITH ASPECT RATIO 5

  • 摘要: 针对宽高比为5的矩形断面梁进行了节段模型测压风洞试验,研究了气动力的展向相关性随展向间距和来流风攻角的变化规律。研究结果表明:气动力的展向相关系数随展向间距的增大而逐渐减小;在同一展向间距下,升力的展向相关系数最大,扭矩的展向相关系数次之,阻力的展向相关系数最小。升力和扭矩的展向相关系数在0°风攻角时最大,且随着风攻角的增大而减小。

     

    Abstract: A pressure-measured sectional model wind tunnel test of a rectangular cylinder with aspect ratio 5 was performed. The changing rule for the spanwise correlation of an aerodynamic force versus a spanwise distance and a wind attacking angle was studied. The study results show that the spanwise correlation coefficient of an aerodynamic force becomes smaller with a larger spanwise distance. Under the same spanwise distance, the spanwise correlation coefficient of a lift force is greatest, the spanwise correlation coefficient of a torque is smaller, and the spanwise correlation coefficient of a drag force is smallest. The spanwise correlation coefficient between a lift force and a torque attains the maximum value in a zero degree wind attacking angle, and it becomes smaller with a larger wind attacking angle.

     

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