The effect of free surface on cloud cavitating flow around a blunt body | |
Xu C(徐畅); Wang YW(王一伟); Huang CG(黄晨光); Huang J(黄荐); Yu C(余超) | |
刊名 | JOURNAL OF HYDRODYNAMICS |
2017-12-01 | |
卷号 | 29期号:6页码:979-986 |
关键词 | Cavitation Multiphase Flow Water Tank Experiment Cfd Free Surface |
ISSN号 | 1001-6058 |
DOI | 10.1016/S1001-6058(16)60812-0 |
文献子类 | Article |
英文摘要 | In this study, the effect of the free surface on the cloud cavitating flow around a blunt body is investigated based on the water tank experiment and the CFD method. Numerical results are in good agreement with experimental data, and the mesh independence of the methods is verified. The cavity evolution process includes the cavity growth, the re-entrant jet, the cavity shedding, and the collapse, which can all be observed from the water tank experiment. The effects of the free surface on the cavity length, the thickness, and the cavity evolution period are analyzed by comparing the difference between the cavitating flows on the upper and lower sides of the body. This study also examines the effect of the distance between the free surface and the model through a series of water tank experiments and numerical simulations. The cavity stability and asymmetry, as well as the thickness and the velocity of the re-entrant jet inside the cavity, which varies with the submerged depth, are discussed with consideration of the effect of the free surface. The effect of the free surface on the cavitating flow around the blunt body is enhanced with the decrease of the submerged depth. |
分类号 | Q3 |
WOS关键词 | Large-eddy Simulation ; Axisymmetrical Projectile ; Twisted Hydrofoil ; Turbulence ; Emphasis |
WOS研究方向 | Mechanics |
语种 | 英语 |
CSCD记录号 | CSCD:6119950 |
WOS记录号 | WOS:000415278700008 |
资助机构 | National Natural Science Foundation of China(11772340 ; Youth Innovation Promotion Association of CAS(2015015) ; 11672315) |
内容类型 | 期刊论文 |
源URL | [http://dspace.imech.ac.cn/handle/311007/71930] |
专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
通讯作者 | Wang YW(王一伟) |
推荐引用方式 GB/T 7714 | Xu C,Wang YW,Huang CG,et al. The effect of free surface on cloud cavitating flow around a blunt body[J]. JOURNAL OF HYDRODYNAMICS,2017,29(6):979-986. |
APA | Xu C,Wang YW,Huang CG,Huang J,&Yu C.(2017).The effect of free surface on cloud cavitating flow around a blunt body.JOURNAL OF HYDRODYNAMICS,29(6),979-986. |
MLA | Xu C,et al."The effect of free surface on cloud cavitating flow around a blunt body".JOURNAL OF HYDRODYNAMICS 29.6(2017):979-986. |
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