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涡发生器控制平板边界层分离的大涡模拟

胡昊 李新凯 戴丽萍 王晓东 康顺

胡昊, 李新凯, 戴丽萍, 王晓东, 康顺. 涡发生器控制平板边界层分离的大涡模拟[J]. 航空动力学报, 2016, 31(2): 493-502. doi: 10.13224/j.cnki.jasp.2016.02.030
引用本文: 胡昊, 李新凯, 戴丽萍, 王晓东, 康顺. 涡发生器控制平板边界层分离的大涡模拟[J]. 航空动力学报, 2016, 31(2): 493-502. doi: 10.13224/j.cnki.jasp.2016.02.030
HU Hao, LI Xin-kai, DAI Li-ping, WANG Xiao-dong, KANG Shun. Vortex generators control flat boundary layer separation of large eddy simulation[J]. Journal of Aerospace Power, 2016, 31(2): 493-502. doi: 10.13224/j.cnki.jasp.2016.02.030
Citation: HU Hao, LI Xin-kai, DAI Li-ping, WANG Xiao-dong, KANG Shun. Vortex generators control flat boundary layer separation of large eddy simulation[J]. Journal of Aerospace Power, 2016, 31(2): 493-502. doi: 10.13224/j.cnki.jasp.2016.02.030

涡发生器控制平板边界层分离的大涡模拟

doi: 10.13224/j.cnki.jasp.2016.02.030
基金项目: 

国家自然科学基金(51176046)

中央高校基金项目(JB2015193)

详细信息
    作者简介:

    胡昊(1979-),男,河南南阳人,博士生,主要从事风力机流动控制及气动噪声方面研究.

  • 中图分类号: V232;TK83

Vortex generators control flat boundary layer separation of large eddy simulation

  • 摘要: 为了研究涡发生器(VGs)间距λ对控制边界层分离效果的影响,选取了4种涡发生器间距,λ/H(H为涡发生器高度)分别为5,7,9,11.采用大涡模拟(LES)方法对带逆压梯度的平板边界层分离流动及VGs控制分离流动进行了数值模拟.分析了有无VGs控制时,湍流场中大尺度相干结构及其演化规律,分别从旋涡间距、边界层内流体动能、压差损失等方面考察了VGs间距对控制流动分离效果的影响.研究结果表明当λ/H为5时,VGs间距过小抑制了旋涡的展向发展,λ/H为9,11时,VGs间距过大边界层内流体动能偏低,当间距λ/H为7时流动控制效果更优,此时计算域压差损失最小,相比较无VGs控制时,压差损失降低了30.95%.

     

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出版历程
  • 收稿日期:  2015-02-10
  • 刊出日期:  2016-02-28

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