| 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)
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| 发表期刊 | Journal of Fluids Engineering
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| 2016-02 | |
| 卷号 | 138期号:6页码:061102 |
| ISSN | 0098-2202 |
| 摘要 | 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. |
| DOI | 10.1115/1.4032293 |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000375789100002 |
| 项目资助者 | National Natural Science Foundation of China 11332011 11202215 Youth Innovation Promotion Association of CAS 2015015 |
| 课题组名称 | LMFS冲击与耦合效应(LHO) |
| 论文分区 | 二类/Q2 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/59617 |
| 专题 | 流固耦合系统力学重点实验室 |
| 作者单位 | Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences |
| 推荐引用方式 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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