Corrections for spatial velocity derivatives in a turbulent shear flow
Corrections for spatial velocity derivatives in a turbulent shear flow
复制标题
湍流剪切流中空间速度导数的修正
DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
John Kim
中科院分区：
文献类型：
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作者：
R. Antonia;Yonggang Zhu;John Kim
从一个完全发展的槽道湍流的直接数值模拟数据库中推断了对测量的空间速度导数的可能的修正。与墙法向导数相比，跨向导数修正的大小与与墙体距离的关系要小得多。与壁法向导数相比，基于局部各向同性的修正对于跨向导数是更好的近似。
Possible corrections for measured spatial velocity derivatives have been inferred from a direct numerical simulation database for a fully developed turbulent channel flow. The magnitude of the correction depends much less on the distance from the wall for derivatives in the spanwise direction than for those in the wall-normal direction. Corrections based on local isotropy are better approximations for spanwise derivatives than for wall-normal derivatives.