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过渡Reynolds数下Stokes层的间歇湍流特性

孔玮 李佳

孔玮, 李佳. 过渡Reynolds数下Stokes层的间歇湍流特性[J]. 应用数学和力学, 2020, 41(10): 1171-1182. doi: 10.21656/1000-0887.400382
引用本文: 孔玮, 李佳. 过渡Reynolds数下Stokes层的间歇湍流特性[J]. 应用数学和力学, 2020, 41(10): 1171-1182. doi: 10.21656/1000-0887.400382
KONG Wei, LI Jia. Intermittent Turbulence Characteristics in the Stokes Layer for a Transitional Reynolds Number[J]. Applied Mathematics and Mechanics, 2020, 41(10): 1171-1182. doi: 10.21656/1000-0887.400382
Citation: KONG Wei, LI Jia. Intermittent Turbulence Characteristics in the Stokes Layer for a Transitional Reynolds Number[J]. Applied Mathematics and Mechanics, 2020, 41(10): 1171-1182. doi: 10.21656/1000-0887.400382

过渡Reynolds数下Stokes层的间歇湍流特性

doi: 10.21656/1000-0887.400382
基金项目: 国家自然科学基金(11702107)
详细信息
    作者简介:

    孔玮(1986—),男,讲师,博士(E-mail: kongwei203@163.com);李佳(1984—),女,讲师,博士(通讯作者. E-mail: lijia107@163.com).

  • 中图分类号: O357.41

Intermittent Turbulence Characteristics in the Stokes Layer for a Transitional Reynolds Number

Funds: The National Natural Science Foundation of China(11702107)
  • 摘要: 针对典型的过渡Reynolds数Re=495,以壁面的表面粗糙度为激励,用数值模拟的方法研究了Stokes层的间歇湍流特性,分别从壁面平均速度梯度、平均速度剖面以及Reynolds应力等方面进行了分析.发现平均速度剖面在一个周期的大部分相位下并不符合对数律,只有减速阶段的极少数相位处与对数律符合得较好;将Reynolds应力与不可压缩边界层的结果进行了对比,发现两者从分布上很相似,包括峰值大小及位置,但二者在湍流核心区存在较大的差异.以上特性显示出Stokes层过渡阶段间歇湍流的强非平衡性.
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出版历程
  • 收稿日期:  2019-12-27
  • 修回日期:  2020-09-08
  • 刊出日期:  2020-10-01

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