IMECH-IR  > 流固耦合系统力学重点实验室
Alternative TitleInvestigation of cavities shedding condition on underwater vehicles in the vertical launch process
王一伟; 黄晨光; 吴小翠; 杜特专; 方新; 梁乃刚; 于娴娴
Source Publication工程力学
Other AbstractShedding phenomena of cavitation bubbles can change the characteristics of collapse pressure, so it is very important for the structure design. It is significant to investigate the influence of launch conditions on the shedding and evolution of cavitation bubbles. Firstly, the re-entry jet was affirmed as the control factor through the analysis of bubbles shedding. A dimensionless number Sul was conducted as the ratio of periods of the re-entry jet motion and the vehicle motion. Sul can describe the condition of bubbles at the moment when the vehicle is running through the free surface. Moreover, a series of numerical simulations were carried out to obtain evolutions of flow fields and cavities in typical launch processes with different depth. CFD results verified theoretical results and calculated the parameters in the formula of Sul by nonlinear fitting. Finally, influence of important factors on shedding of cavities were discussed such as cavitation number, Froude number, launch speed and depth. Some advice to optimize launch condition was also provided.
Indexed ByEI ; CSCD
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Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
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GB/T 7714
王一伟,黄晨光,吴小翠,等. 航行体水下垂直发射空泡脱落条件研究[J]. 工程力学,2015,32(11):33-39.
APA 王一伟.,黄晨光.,吴小翠.,杜特专.,方新.,...&于娴娴.(2015).航行体水下垂直发射空泡脱落条件研究.工程力学,32(11),33-39.
MLA 王一伟,et al."航行体水下垂直发射空泡脱落条件研究".工程力学 32.11(2015):33-39.
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