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通过求解二维非定常不可压缩 Ｎ Ｓ方程，研究了均匀来流中旋转振荡圆柱的流动特性，系统地改变流动的振荡频率、振幅，分析了圆柱的受力特性及尾迹结构，发现了与横向、流向振荡的圆柱相似，旋转振荡也是流动控制的一个有效方法，有其自身的流动规律及特点。
By solving the two-dimensional unsteady incompressible NS equation, the flow characteristics of a rotating circular cylinder in a uniform flow are studied, and the oscillation frequency and amplitude of the flow are systematically changed. The stress characteristics and the wake structure of the cylinder are analyzed. Similar to the oscillating cylinder in the transverse direction, the oscillating oscillation is also an effective method of flow control with its own flow pattern and characteristics.