【作者】 鄂学全； 高宇欣；

【Author】 E Xuequan and Gao Yuxin (Institute of mechanics, Chinese Academy of Sciences, Beijing, 100080, China)

【机构】 中国科学院力学研究所；

【摘要】 本文对交叉布置的两根丝产生氢气泡的方法显示流谱作了探索,并对旋转圆柱绕流的变化过程进行了流谱显示.显示结果表明:该显示方法可以给出较漂亮的流谱图,流场变化主要与参数α(α=Ωα/U∞,Ω-圆柱旋转角速度,α-圆柱半径)有关,并对此作了简要讨论.更多还原

【Abstract】 In this paper, the variable processes of the steady flow moving around rotating circular cylinder are visualized by the hydrogen bubble method with two cross wires. The results show that this method can give beautiful patterns. The change of flow is related to the parameter a ( α=Ωα/U∞, where Ω and α are rotating angle velocity and radius of the circular cylinder respectively), and its influence is briefly discussed.更多还原