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题名The formation mechanism of recirculating wake for steady flow through and around arrays of cylinders
作者
发表日期2019-04-01
发表期刊Physics of Fluids
ISSN/eISSN1070-6631
卷号31期号:4
摘要

The mechanism of recirculating wake formation was examined based on a series of numerical experiments on steady flow through and around periodic square arrays of evenly spaced circular cylinders. The Reynolds number of the array Re ranged from 1 to 50, and the solid fraction of the array φ was varied from 9.69 × 10 to 0.785. The recirculating wake was found to be completely detached from the array under a certain range of φ and Re, and varied in size with φ and Re. The trailing edge bleeding from the array affects the vortex formation in a way consistent with the entrainment-detrainment mechanism. The combination effect of vorticity accumulation and decay also gives rise to the dissipative vortex. By examining the shear layer formed by the bleeding flow and outer flow, which varies with Re and φ, it is concluded that the recirculation mainly results from flow separation at the junction point between the shear layer and the extended centerline of the array due to an adverse pressure gradient.

DOI10.1063/1.5090817
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收录类别SCIE
语种英语English
WOS研究方向Mechanics ; Physics
WOS类目Mechanics ; Physics, Fluids & Plasmas
WOS记录号WOS:000466701800037
Scopus入藏号2-s2.0-85065184842
引用统计
被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://repository.uic.edu.cn/handle/39GCC9TT/10638
专题个人在本单位外知识产出
通讯作者Yu, Peng
作者单位
1.Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Jiangsu Key Laboratory of Construction Materials,School of Materials Science and Engineering,Southeast University,Nanjing,210018,China
推荐引用方式
GB/T 7714
Tang, Tingting,Yu, Peng,Shan, Xiaowenet al. The formation mechanism of recirculating wake for steady flow through and around arrays of cylinders[J]. Physics of Fluids, 2019, 31(4).
APA Tang, Tingting, Yu, Peng, Shan, Xiaowen, & Chen, Huisu. (2019). The formation mechanism of recirculating wake for steady flow through and around arrays of cylinders. Physics of Fluids, 31(4).
MLA Tang, Tingting,et al."The formation mechanism of recirculating wake for steady flow through and around arrays of cylinders". Physics of Fluids 31.4(2019).
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