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IMECH-IR  > 流固耦合系统力学重点实验室(2012-)  > 期刊论文
Title:
Cloud Cavitating Flow Over a Submerged Axisymmetric Projectile and Comparison Between Two-Dimensional RANS and Three-Dimensional Large-Eddy Simulation Methods
Author: Wang YW(王一伟); Huang CG(黄晨光); Fang X(方新); Yu XX(于娴娴); Wu XC(吴小翠); Du TZ(杜特专)
Source: Journal of Fluids Engineering
Issued Date: 2016-02
Volume: 138, Issue:6, Pages:061102
Abstract: For the cloud cavitation around slender axisymmetric projectiles, a two-dimensional (2D) numerical method was based on the mixture approach with Singhal cavitation model and modified renormalization-group (RNG) k-epsilon turbulence model, and a three-dimensional (3D) method was established with large-eddy simulation (LES) and volume of fraction (VOF) approach. The commercial computational fluid dynamic (CFD) software FLUENT is used for the 2D simulation, and the open source code OpenFOAM is adopted for the 3D calculation. Experimental and numerical results were presented on a typical case, in which the projectile moves with a quasi-constant axial speed. Simulation results agree well with experimental results. An analysis of the evolution of cavitating flow was performed, and the related physical mechanism was discussed. Results demonstrate that shedding cavity collapse plays an important role in the generation and acceleration of re-entry jet, which is the main reason for the instability of cloud cavitation. The 2D Reynolds-Averaged Navier-Stokes (RANS) method can represent the physical phenomena effectively. The 3D LES method can give an efficient simulation on the shedding vortices, and considerable accurate shapes of shedding cavities are captured.
Language: 英语
Indexed Type: SCI ; EI
DOI: 10.1115/1.4032293
WOS ID: WOS:000375789100002
ISSN: 0098-2202
Funder: National Natural Science Foundation of China 11332011 11202215 Youth Innovation Promotion Association of CAS 2015015
Department: LMFS冲击与耦合效应(LHO)
Classification: 二类/Q2
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/59617
Appears in Collections:流固耦合系统力学重点实验室(2012-)_期刊论文

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description.institution: Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences

Recommended Citation:
Wang YW,Huang CG,Fang X,et al. Cloud Cavitating Flow Over a Submerged Axisymmetric Projectile and Comparison Between Two-Dimensional RANS and Three-Dimensional Large-Eddy Simulation Methods[J]. Journal of Fluids Engineering,2016-02-01,138(6):061102.
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文件名: 06-Cloud Cavitating Flow Over a Submerged Axisymmetric Projectile and Comparison Between Two-Dimensional RANS and Three-Dimensional Large-Eddy Simulation Methods.pdf
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