Numerical simulation on the flopping behavior of two side-by-side cylinders at different Reynolds numbers

摘要：

　　In this study, two-dimensional numerical simulations are carried out to investigate the bi-stable characteristics of the flow past two side-by-side cylinders arranged at a constant spacing ratio L/D=1.70.The flopping behaviors were studied at four different Reynolds numbers of 100, 200,500 and 1000.It was found that the quasi anti-phase vortex shedding pattern is observed when the relative position of wide wake and narrow wake changes.The average time interval between flops is found to be irregular and varied with increasing of Reynolds number.The drag coefficient in the wide wake is much smaller than that in the narrow wake and such difference is found to be not sensitive to the variation of Reynolds number.

关键词： Bi-stable flow Force characteristics Reynolds number Flopping time

作者: Changshan Yin Yangyang Gao Kang Yang

作者单位: Zhejiang University, Zhoushan, 316021

会议类型: 国际会议

会议名称: The Second Conference of Global Chinese Scholars on Hydrodynamics(第二届全球华人水动学学术会议)

会议地点: 江苏 无锡

会议语种:英文

页码: 203-210

在线出版日期: 2016-11-11（万方平台首次上网日期，不代表论文的发表时间）