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一种基于平均流场的翼型尾缘宽频噪声预测方法

柏宝红 李晓东

柏宝红, 李晓东. 一种基于平均流场的翼型尾缘宽频噪声预测方法[J]. 航空动力学报, 2016, 31(1): 115-123. doi: 10.13224/j.cnki.jasp.2016.01.016
引用本文: 柏宝红, 李晓东. 一种基于平均流场的翼型尾缘宽频噪声预测方法[J]. 航空动力学报, 2016, 31(1): 115-123. doi: 10.13224/j.cnki.jasp.2016.01.016
BAI Bao-hong, LI Xiao-dong. A RANS-based prediction method for the airfoil broadband trailing edge noise[J]. Journal of Aerospace Power, 2016, 31(1): 115-123. doi: 10.13224/j.cnki.jasp.2016.01.016
Citation: BAI Bao-hong, LI Xiao-dong. A RANS-based prediction method for the airfoil broadband trailing edge noise[J]. Journal of Aerospace Power, 2016, 31(1): 115-123. doi: 10.13224/j.cnki.jasp.2016.01.016

一种基于平均流场的翼型尾缘宽频噪声预测方法

doi: 10.13224/j.cnki.jasp.2016.01.016
基金项目: 

国家重点基础研究发展计划(2012CB720202)

国家自然科学基金(51476005)

详细信息
    作者简介:

    柏宝红(1986-),男,陕西宝鸡人,博士生,主要从事流体机械气动声学研究.

  • 中图分类号: V211

A RANS-based prediction method for the airfoil broadband trailing edge noise

  • 摘要: 发展了一种基于平均流场的翼型尾缘宽频噪声预测方法.可压缩Navier-Stokes方程被重组为能描述气动噪声产生和传播的形式,包括准确描述声传播的线性算子和雷诺应力构成的声源项.为减少计算时间和避免格林函数空间奇异性,采用伴随格林函数方法求解格林函数;同时采用基于平均流场的声源模化方法生成声源项.为了验证该方法,预测了NACA0012翼型尾缘宽频噪声,其中平均流场使用OpenFOAM计算,格林函数采用均匀流动下半无限大平板近似.预测结果表明:对于不同来流速度和攻角,该方法不仅能准确预测噪声幅值及峰值频率,而且噪声频谱也都在实验结果的误差范围之内(±3dB),证明了该预测方法的精度和适用性.

     

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出版历程
  • 收稿日期:  2015-02-06
  • 刊出日期:  2016-01-28

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