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Cloud Cavitating Flow Over a Submerged Axisymmetric Projectile and Comparison Between Two-Dimensional RANS and Three-Dimensional Large-Eddy Simulation Methods
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 PublicationJournal of Fluids Engineering
2016-02
Volume138Issue:6Pages:061102
ISSN0098-2202
AbstractFor 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.
DOI10.1115/1.4032293
Indexed BySCI ; EI
Language英语
WOS IDWOS:000375789100002
Funding OrganizationNational Natural Science Foundation of China 11332011 11202215 Youth Innovation Promotion Association of CAS 2015015
DepartmentLMFS冲击与耦合效应(LHO)
Classification二类/Q2
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59617
Collection流固耦合系统力学重点实验室
AffiliationKey Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
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,2016,138(6):061102.
APA Wang YW,Huang CG,Fang X,Yu XX,Wu XC,&Du TZ.(2016).Cloud Cavitating Flow Over a Submerged Axisymmetric Projectile and Comparison Between Two-Dimensional RANS and Three-Dimensional Large-Eddy Simulation Methods.Journal of Fluids Engineering,138(6),061102.
MLA Wang YW,et al."Cloud Cavitating Flow Over a Submerged Axisymmetric Projectile and Comparison Between Two-Dimensional RANS and Three-Dimensional Large-Eddy Simulation Methods".Journal of Fluids Engineering 138.6(2016):061102.
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