中文摘要：

以水为工作介质,在综合考虑了液体黏性、表面张力、液体压缩性以及湍流作用等因素的情况下,对孔板水力空化反应器中空化泡动力学行为特性进行了详细数值研究.详细分析了湍流作用、空化泡初始半径、孔板下游恢复压力、管道直径以及孔板直径与管道直径之比对空化泡运动特性及其所形成的压力脉冲的影响规律,发现了一些新现象,如空化泡半径二次生长现象.研究结果可为水力空化反应器的优化设计以及水力空化技术的实际应用提供一定的理论指导与技术支撑。

英文摘要：

Considering such factors as liquid viscosity, surface tension, liquid compressibility and turbulence, the dynamical behaviors of cavitation bubble in orifice plate hydrodynamic cavitation reactor are numerically investigated regarding water as work medium. Detailed analysis is conducted to understand the effects of turbulence, initial radius of cavitation bubble, downstream recovery pressure of the orifice plate, pipe diameter and orifice to pipe diameter ratio on the cavitation bubble dynamics and the pressure pulse caused by rapid shrinkage of cavitation bubble. Some new phenomena such as second growth of cavitation bubble radius are discovered. The achievements obtained in this work may provide theoretical guidance and technical support for the optimization design of hydrodynamic cavitation reactor and practical application of hydrodynamic cavitation technology.