Numerical simulation of viscous flow over a grooved surface by the lattice Boltzmann method

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• 作者：Qiaogao Huang 黄桥驿/a> ; Guang Pan 滿僿/a>
• 关键词：grooved surface ; drag reduction ; viscous flow ; lattice Boltzmann method (LBM) ; momentumexchange method
• 刊名：Journal of Shanghai Jiaotong University (Science)
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：21
• 期：2
• 页码：143-150
• 全文大小：1,470 KB
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• 作者单位：Qiaogao Huang 黄桥高 (1)
  Guang Pan 潘 光 (1)
  
  1. School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an, 710072, China
  
• 刊物类别：Engineering
• 刊物主题：Electrical Engineering
  Life Sciences
  Architecture
  Chinese Library of Science
  
• 出版者：Shanghai Jiao Tong University Press
• ISSN：1995-8188

文摘

The motivation of this work is to investigate a grooved surface’s drag reduction. The viscous flow through a two-dimensional microchannel with the grooved surface is analyzed by the lattice Boltzmann method (LBM). The effects of the grooved surface on the streamline patterns, the velocity distributions near wall region and the fluid shear stress distributions on the walls at different Reynolds numbers are studied. In addition, the influences of the groove’s geometrical parameters on the grooved surface’s drag reduction are discussed. The numerical results confirm the grooved surface’s drag reduction and present the drag reduction law of the grooved surface.