近壁空泡基于非拟序结构与拟序结构的运动规律

以小粒径的空泡为例，从MORRISON方程出发导出湍流边界层模式的非拟序结构下空泡的近壁区运动方程，且进一步从湍流近壁拟序结构的基本观点出发导出了基于该结构时空泡的近壁区运动方程；对空泡在两种结构下的运动进行了对比分析，结果表明近壁湍流的拟序结构可以认为是空泡对壁面产生剥蚀破坏的水流内部结构主要的因素之一。理论公式导出的空泡相对壁面的人射角度与试验观测到的数据较为吻合。

Contrast research on movement rules of spherical bubble under the turbulent coherent structure and non-turbulent coherent structure

From MORRISON equation, taking the small cavities as example, a dynamic equation is established for the bubble and single spherical sand under the non-turbulent coherent structure near the wall, and then a dynamic equation is established under the turbulent coherent structure near the wall. Through comparison, it can be seen that the turbulent coherent structure near the wall influences directly the corrode of wall. From deriving theoretical formula, the angle of incidence of the cavities of relative wall also tallies relatively with the data tested.