摘要
从水力机械空化现象的产生机理出发,综述了国内外空化空蚀问题理论分析、数值模拟和试验研究的现状,简要叙述了各种研究方法的优点和特点.通过分析归纳理论分析、数值模拟和试验研究这三者之间的内在联系,指出空化模型理论和可视化空化试验是目前的研究重点.在对相关研究进行总结的基础上,阐述了水力机械空化空蚀研究的发展趋势为,数值模拟理论和技术的深入完善、可视化技术的广泛应用和空蚀在线监测系统的开发;而空化空蚀问题的确切机理将是未来研究工作的重点.
The research progress for the mechanism of cavitation in hydraulic machinery,numerical simulation and experiment are summarized.The relationships among the three investigation methods are discussed and the focus are the cavitation model theory and visual experiment.At last,the development trends of cavitation are summarized as the indepth improvement of numerical simulation,the applications of visual technology,and the development of online monitoring system.And the mechanism of cavitation and erosion will be the key emphasis of study in the future.
出处
《排灌机械》
EI
2009年第4期269-272,共4页
Drainage and Irrigation Machinery
基金
江苏省教育厅高技术产业化项目(JHB05-38)
关键词
水力机械
空化
空蚀
机理研究
可视化技术
hydraulic machinery
cavitation
cavitation erosion
mechanism study
visual technology
