摘要
对充满静止不可压缩粘性流体的圆柱形，当柱壁沿垂直于柱轴方向作小振幅简谐振荡时的内部流动进行了实验研究，发现柱壁振荡在圆柱域内部也诱导形成旋涡形态的定常整流流动。流动图谱随不同的振荡参数组合呈现四涡形态、双涡形态以及足印状双涡和蝶状四涡的过渡形态，并初步给出了不同整流图谱随参数变化的演化规律。
This paper presents the experimental study of the flow insidea circular cylinder filled with an incompressible viscous fluid at rest,whenthe circular cylinder performs a small amplitude harmonic oscillationperpendicular to its axis.It has been found that a steady streaming vortexflow exists inside an oscillating circular cylinder.Four streaming flowpatterns:the four-vortices,the couple-vortices,the footprint-shaped andthe butterfly-shaped appears with different oscillating parameters.Theevolution trend of the flow pattern from one to the other with the dif-ferent oscillating parameters is revealed.
出处
《空气动力学学报》
CSCD
北大核心
1994年第3期350-354,共5页
Acta Aerodynamica Sinica
关键词
定常整流流动
粘性流
旋涡
振荡流
steady streaming flow,viscous flow,vortex,oscillatingflow,internal flow,streaming flow pattern.
