摘要
数值模拟了Re=200情况下分流板对并列双圆柱流场的影响,并列双圆柱的间距比为1.5 D(D为圆柱的直径),分流板放置在并列双圆柱下游中心线G/D=0.5～1.5的位置;采用有限元法进行数值求解.计算表明,在合适的位置分流板可以抑制并列圆柱后的偏流,减小升阻力.分流板并不能很好地控制旋涡脱落但有一定的削弱作用.
The effect of a splitter plate on the flow past two side-by-side cylinders was numerically investigated at Reynolds number of 200.The spacing between two side-by-side cylinders was fixed at 1.5 D(D was the diameter of cylinder) while the plate was placed along the horizontal centerline,G/D=0.5-1.5.The technique used for numerical simulation was the finite element method.The numerical results show that at appropriate positions the plate could suppress significantly the biased flow from the two main side-by-side cylinders.Meanwhile it can reduce the fluctuating lift and drag as well.The vortex shedding is not well controlled but has a certain role of weakening.
出处
《中国计量学院学报》
2012年第2期145-151,共7页
Journal of China Jiliang University
基金
国家自然科学基金资助项目(No.10972208)
关键词
流动控制
分流平板
并列圆柱
升阻力
flow control
splitter plate
side-by-side cylinders
lift and drag
