Flow control of the wake vortex street of a circular cylinder by using a traveling wave wall at low Reynolds number

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• 作者：Feng Xu^a ; ^{xufeng_hit@163.com} ; ^{xufenghit@hit.edu.cn} ; Wen-Li Chen^b ; ^c ; Wei-Feng Bai^a ; Yi-Qing Xiao^a ; Jin-Ping Ou^a ; ^c
• 关键词：Traveling wave wall ; Oscillating wake ; CFD numerical simulation ; Boundary vorticity flux ; Relative flow fields
• 刊名：Computers & Fluids
• 出版年：2017
• 出版时间：2 March 2017
• 年：2017
• 卷：145
• 期：Complete
• 页码：52-67
• 全文大小：16985 K
• 卷排序：145

文摘

CFD simulation is employed to carry out the entire procedure from FR to the TWW. Influences of the TWW propagation direction and the wave velocity are investigated. TWW in the “Downstream” direction eliminates the oscillating wake of the cylinder. Fluctuating value of the lift coefficient plummets to minimum value at c/U∞ = 2.0. Mechanism of the TWW method is expounded by the BVF and the relative flow fields.