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本文根据实验资料,通过分析水跃底部脉动压力的互相关特性,以及比较脉压强度与水平紊流强度的沿程分布情况,揭示出水跃区的壁压脉动源主要来自相干结构中的、准稳定的大尺度表层涡旋的摆动。
Based on the experimental data, by analyzing the cross-correlation characteristics of the pulsating pressure at the bottom of the hydraulic jump and comparing the distribution along the pulse pressure and the horizontal turbulence intensity, it is revealed that the wall-pressure pulsation source in the water-jumping region mainly comes from the coherent structure Swing of large-scale surface vortexes.