计算物理 ›› 2001, Vol. 18 ›› Issue (6): 569-572.

• 论文 • 上一篇    下一篇

旋翼桨尖几何形状对旋翼气动噪声影响的定量计算分析

宋文萍1, 韩忠华1, 王立群2, 杨爱明3, 乔志德1   

  1. 1. 西北工业大学翼型研究中心, 陕西 西安 710072;
    2. 空军工程大学, 陕西 西安 710038;
    3. 清华大学, 北京 100084
  • 收稿日期:2001-02-05 修回日期:2001-05-21 出版日期:2001-11-25 发布日期:2001-11-25
  • 作者简介:文萍(1964-),山东莱州,副教授,博士,从事计算流体力学及相关领域研究.
  • 基金资助:
    航空基金(98A53002)资助项目

THE EFFECT OF BLADE-TIP SHAPE ON ROTOR AEROACOUSTIC NOISE BY EULER/KIRCHHOFF METHOD

SONG Wen-ping1, HAN Zhong-hua1, WANG Li-qun2, YANG Ai-ming3, QIAO Zhi-de1   

  1. 1. Northwestern Polytechnical University, Xi'an 710072, P R China;
    2. Air Force Engineering University, Xi'an 710038, P R China;
    3. Tsinghua University, Beijing 100084, P R China
  • Received:2001-02-05 Revised:2001-05-21 Online:2001-11-25 Published:2001-11-25

摘要: 采用CFD与计算声学相结合的Euler Kirchhoff方法对UH-1H直升机旋翼跨声速悬停流动的远场噪声进行定量计算,并将计算结果与实验值进行比较,验证了Euler Kirchhoff方法的正确性.然后以UH-1H直升机旋翼为基准旋翼,定量计算了对桨尖旋翼翼型厚度、旋翼尖削度、后掠角进行变化后的旋翼悬停流场的远场噪声,分析了旋翼桨尖几何形状对噪声的影响.得出结论:降低桨尖翼型厚度、浆尖尖削、浆尖后掠均可以降低噪声峰值.

关键词: 旋翼, 欧拉方程, 气动噪声, Kirchhoff公式

Abstract: The Euler/Kirchhoff method is adopted to calculate the far field noise of UH-1H rotor,and the calculated results are compared with the measured data.The effect of rotor blade tip shape on high speed rotor noise is investigated.The results show that,with the decreasing of airfoil thickness near the blade tip or the increasing of the taper ratio near the blade tip and the sweep of the blade tip, the high speed rotor noise can be reduced to some extent.

Key words: rotor, Euler equation, aeroacoustic noise, Kirchhoff formula

中图分类号: