有压输水管道系统含气水锤研究  

Study on water hammer with gas in pressurized water delivery pipeline system

作　　者：郑源[1] 索丽生[1] 屈波[1] 张健[1] 刘德有[1] 

机构地区：[1]河海大学水利水电工程学院,江苏南京210098

出　　处：《河海大学学报（自然科学版）》2005年第3期277-281,共5页Journal of Hohai University(Natural Sciences)

基　　金：国家自然科学基金资助项目(50179008);教育部博士基金资助项目(20010294006);科技部水资源与水电工程科学国家重点实验室开发基金资助项目(2003B005)

摘　　要：通过模型试验研究有压输水管道系统阀门关闭时间对汽化时间和弥合水锤压力的影响,管道中的含气量对弥合水锤压力的影响.研究结果表明,在有压输水管道系统中,弥合水锤压力与汽化时间的大小有密切关系,计算机数据采集的频率对水锤压力的波形有明显影响.建立了含气水锤的气泡离散数学模型并进行了数值计算,数值计算结果与试验测试值是吻合的.An experimental study was performed to investigate the influences of closing valve time on vaporizing time and water hammer pressure in the pressurized water delivery pipeline system and the influence of gas content on water hammer pressure as well. The results show that water hammer pressure is closely related to vaporizing time, and that the frequency of data acquisition is of obvious influence on the fluctuation of water hammer pressure. Furthermore, a bubble-dispersion numerical model for water hammer with gas was developed, and the calculated result with the model was in accordance with that from experiments.

关 键 词：有压输水管道系统 含气水锤 模型试验 数值计算 

分 类 号：TV672[水利工程—水利水电工程]