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基于涡方法生成大涡模拟进口条件的数值计算

谢宝林 邵亮

谢宝林, 邵亮. 基于涡方法生成大涡模拟进口条件的数值计算[J]. 北京航空航天大学学报, 2015, 41(4): 701-706. doi: 10.13700/j.bh.1001-5965.2014.0281
引用本文: 谢宝林, 邵亮. 基于涡方法生成大涡模拟进口条件的数值计算[J]. 北京航空航天大学学报, 2015, 41(4): 701-706. doi: 10.13700/j.bh.1001-5965.2014.0281
XIE Baolin, SHAO Liang. Generation of unsteady inflow conditions for compressible LES with a modified vortex method[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(4): 701-706. doi: 10.13700/j.bh.1001-5965.2014.0281(in Chinese)
Citation: XIE Baolin, SHAO Liang. Generation of unsteady inflow conditions for compressible LES with a modified vortex method[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(4): 701-706. doi: 10.13700/j.bh.1001-5965.2014.0281(in Chinese)

基于涡方法生成大涡模拟进口条件的数值计算

doi: 10.13700/j.bh.1001-5965.2014.0281
详细信息
    作者简介:

    谢宝林(1989—),男,湖北随州人,硕士生,buaa1214@gmail.com

    通讯作者:

    邵亮(1963—),男,江苏太仓人,研究员,lshao@ec-lyon.fr,主要研究方向为流体力学.

  • 中图分类号: O357

Generation of unsteady inflow conditions for compressible LES with a modified vortex method

  • 摘要: 探索改进涡方法来生成大涡模拟的非定常进口条件.改进方法中,为了避免局部漩涡数量过多或者过少,采用密度分布方式放置漩涡场.并用Langevin方程控制漩涡运动,模拟实验方法中的蜂窝器,使改进后的涡方法生成的脉动速度场更加符合湍流的特征.在已知雷诺平均的流场结果下,利用涡方法产生漩涡场,进而生成能满足大涡模拟所需要的非定常进口流场.为了检验改进后的涡方法在生成脉动速度过程中的效果,在槽道中进行了对比数值试验,并借助于直接数值模拟数据做对比,对比分析槽道进出口的平均速度、涡量以及雷诺应力统计,证明改进后的涡方法在生成大涡模拟进口条件下是非常有效的.

     

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出版历程
  • 收稿日期:  2014-05-19
  • 修回日期:  2014-09-16
  • 网络出版日期:  2015-04-20

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