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Passive control of cavitating flow around an axisymmetric projectile by using a trip bar 被引量:4
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作者 Jian Huang Chao Yu +2 位作者 Yiwei Wang Chang Xu Chenguang Huang 《Theoretical & Applied Mechanics Letters》 CAS CSCD 2017年第4期181-184,共4页
Quasi-periodical evolutions such as shedding and collapsing of unsteady cloud cavitating flow, induce strong pressure fluctuations, what may deteriorate maneuvering stability and corrode surfaces of underwater vehicle... Quasi-periodical evolutions such as shedding and collapsing of unsteady cloud cavitating flow, induce strong pressure fluctuations, what may deteriorate maneuvering stability and corrode surfaces of underwater vehicles. This paper analyzed effects on cavitation stability of a trip bar arranged on high-speed underwater projectile. Small scale water tank experiment and large eddy simulation using the open source software Open FOAM were used, and the results agree well with each other. Results also indicate that trip bar can obstruct downstream re-entrant jet and pressure wave propagation caused by collapse, resulting in a relatively stable sheet cavity between trip bar and shoulder of projectiles. 展开更多
关键词 Unsteady cavitating flow Trip bar Re-entrant jet passive flow control
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