文章基本信息

标题：Cavitation CFD analyses considering the pressure wave propagation within the piping systems
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作者：Motohiko Nohmi ; Shusaku Kagawa ; Byungjin An 等
期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：240
期号：6
页码：1-12
DOI：10.1088/1755-1315/240/6/062025
出版社：IOP Publishing
摘要：Cavitation surge is a typical unsteady phenomenon and can be a cause of severe noise and vibration problems in hydraulic systems. When the oscillation frequency of the piping systems surrounding the hydraulic devices under cavitation surge is high and/or the pipe length is long, the acoustic wave propagation within the piping systems must be considered. In this study cavitation is computed by two dimensional CFD with cavitation model and the pressure wave in the piping systems is computed by one dimensional distributed model of Method Of Characteristics (MOC). The cavitation CFD and MOC calculations are coupled through boundary conditions. The interactions of cavitation and pressure wave are observed in the computed results.