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Experimental and numerical investigation on cloud cavitating flow around an axisymmetric projectile near the wall with emphasis on the analysis of local cavity shedding
Yu C(余超); Wang YW(王一伟); Huang CG(黄晨光); Du TZ(杜特专); Xu, Chang; Huang, Jian; Wang, YW (reprint author), Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China.
2017-08-01
发表期刊OCEAN ENGINEERING
卷号140页码:377-387
ISSN0029-8018
摘要In this paper, the mechanisms of cavitating flow around an axisymmetric projectile near a wall with local cloud cavity shedding are analyzed using experimental and numerical methods. Several experiments are designed to observe the evolution of cavity around an axisymmetric projectile near a wall underwater with cavitation number sigma = 0.45. Numerical simulations using the large eddy simulation (LES) approach, Kunz cavitation model, and volume of fluid (VOF) method are established in an open-source code OpenFOAM framework to present more information on the flow structure. The shape and length of the cavity are in good agreement with the experimental observation, which guarantees the accuracy of the numerical methods. The characteristics of cavitation around the axisymmetric projectile near the wall are reported, and the wall effect is briefly analyzed according to the experimental observations and the details obtained from the numerical results. Local cavity shedding, which increases the instability of cavity periodic shedding, is observed to be induced by the combination of the vortex structure, jet at the cavity closure, and special cavity shape on the projectile near the wall.
关键词Unsteady Cloud Cavitation Effect Of Wall Large Eddy Simulation Local Cavity Shedding
DOI10.1016/j.oceaneng.2017.06.007
收录类别SCI ; EI
语种英语
WOS记录号WOS:000405765000034
关键词[WOS]LARGE-EDDY SIMULATION ; TWISTED HYDROFOIL ; PREDICTION ; MODEL ; FOIL ; LES
WOS研究方向Engineering ; Oceanography
WOS类目Engineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography
项目资助者National Natural Science Foundation of China(11202215 ; Youth Innovation Promotion Association of CAS(2015015) ; 11332011)
课题组名称LMFS冲击与耦合效应(LHO)
论文分区一类
力学所作者排名1
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文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/60914
专题流固耦合系统力学重点实验室
通讯作者Wang, YW (reprint author), Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China.
推荐引用方式
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Yu C,Wang YW,Huang CG,et al. Experimental and numerical investigation on cloud cavitating flow around an axisymmetric projectile near the wall with emphasis on the analysis of local cavity shedding[J]. OCEAN ENGINEERING,2017,140:377-387.
APA 余超.,王一伟.,黄晨光.,杜特专.,Xu, Chang.,...&Wang, YW .(2017).Experimental and numerical investigation on cloud cavitating flow around an axisymmetric projectile near the wall with emphasis on the analysis of local cavity shedding.OCEAN ENGINEERING,140,377-387.
MLA 余超,et al."Experimental and numerical investigation on cloud cavitating flow around an axisymmetric projectile near the wall with emphasis on the analysis of local cavity shedding".OCEAN ENGINEERING 140(2017):377-387.
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