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谐波平衡法在低速非定常流模拟中的应用

杜鹏程 宁方飞

杜鹏程, 宁方飞. 谐波平衡法在低速非定常流模拟中的应用[J]. 北京航空航天大学学报, 2012, 38(6): 766-771.
引用本文: 杜鹏程, 宁方飞. 谐波平衡法在低速非定常流模拟中的应用[J]. 北京航空航天大学学报, 2012, 38(6): 766-771.
Du Pengcheng, Ning Fangfei. Application of harmonic balance method in simulations of low speed unsteady flows[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(6): 766-771. (in Chinese)
Citation: Du Pengcheng, Ning Fangfei. Application of harmonic balance method in simulations of low speed unsteady flows[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(6): 766-771. (in Chinese)

谐波平衡法在低速非定常流模拟中的应用

基金项目: 国家自然科学基金资助项目(50506001)
详细信息
  • 中图分类号: V211.3

Application of harmonic balance method in simulations of low speed unsteady flows

  • 摘要: 谐波平衡法是一种有效的周期性非定常流的计算方法.采用基于可压缩流的谐波平衡方程在计算低速不可压流动时,会由于对流通量计算格式中的数值粘性污染,降低解的精度和收敛性.采用预处理技术,使得基于可压缩流的谐波平衡方程可以直接用于低速周期性非定常流的计算中.选取典型的不可压方腔驱动流和低雷诺数圆柱绕流为例进行了时间推进法和谐波平衡法的计算对比.计算结果表明预处理后的谐波平衡方程适合于低速流的计算,在谐波平衡法中采用较少阶数的谐波计算就可以还原出几乎准确的非定常流场.

     

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出版历程
  • 收稿日期:  2011-03-16
  • 网络出版日期:  2012-06-30

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