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本文在文献[1]的基础上,用离散涡模型与湍流边界层理论相结合的方法,研究了超临界雷诺数下圆柱突然起动后的分离旋涡运动。文中考虑了二次涡的影响和涡旋的粘性扩散。计算结果与实验结果相符。
Based on the literature [1], this paper studies the separation vortex motions after the cylinder suddenly starts under the supercritical Reynolds number by combining the discrete vortex model and the turbulent boundary layer theory. In the paper, the influence of the secondary vortex and the viscous diffusion of the vortex are considered. The calculation results are consistent with the experimental results.