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“回收/调节”方法在混合LES/RANS模拟方法中的应用

陈逖 刘卫东 范晓樯 孙明波

陈逖, 刘卫东, 范晓樯, 孙明波. “回收/调节”方法在混合LES/RANS模拟方法中的应用[J]. 航空动力学报, 2011, 26(6): 1215-1222.
引用本文: 陈逖, 刘卫东, 范晓樯, 孙明波. “回收/调节”方法在混合LES/RANS模拟方法中的应用[J]. 航空动力学报, 2011, 26(6): 1215-1222.
CHEN Ti, LIU Wei-dong, FAN Xiao-qiang, SUN Ming-bo. Application of recycling/rescaling method in hybrid LES/RANS simulation method[J]. Journal of Aerospace Power, 2011, 26(6): 1215-1222.
Citation: CHEN Ti, LIU Wei-dong, FAN Xiao-qiang, SUN Ming-bo. Application of recycling/rescaling method in hybrid LES/RANS simulation method[J]. Journal of Aerospace Power, 2011, 26(6): 1215-1222.

“回收/调节”方法在混合LES/RANS模拟方法中的应用

基金项目: 国家自然科学基金(10802096)

Application of recycling/rescaling method in hybrid LES/RANS simulation method

  • 摘要: 采用一种混合大涡模拟/雷诺平均Navier-Stokes(LES/RANS)模拟方法结合三阶加权基本无振荡(WENO)格式对马赫数为2.88的压缩斜坡流动进行了数值模拟,并采用“回收/调节”方法生成入口湍流脉动边界条件.当采用固定入口边界条件时,湍流边界层会缺乏合理的湍流能量,使之抵抗逆压梯度的能力减弱,会严重高估分离区的大小;而当采用“回收/调节”方法时,可以在10倍来流边界层厚度的距离内激励起湍流大尺度结构,计算得到的流场能够再现激波/湍流边界层干扰流场的非定常特性,时间及展向平均壁面压力和试验值吻合较好.

     

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出版历程
  • 收稿日期:  2010-07-11
  • 修回日期:  2010-09-14
  • 刊出日期:  2011-06-28

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