Influence of Tail Jet Temperature of Supercavitating Underwater Vehicle on Cavitation Configuration
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摘要: 为了满足超空泡水下航行体稳定航行的流体动力条件,在航行体上闭合的空泡必须具有特定的形态,形成必要的流体动力布局,来平衡航行体自身的重力以及所受的力矩。该文采用计算流体动力(CFD)方法对2D模型通气超空泡及尾部喷流进行一体化数值仿真研究。在模型处于零攻角时,对不同尾喷温度下的通气超空化流场进行数值分析,得出了超空泡形态随尾部喷流温度的变化规律,与试验所得规律一致,为超空泡航行体的流体动力特性与动力布局研究提供了参考。Abstract: In order to meet the hydrodynamic conditions for supercaviating underwater vehicles moving stable, the cavity closing on a vehicle must have a particular configuration to balance the vehicle’s gravity and the moment suffered. In this study, the influence of tail jet intensity on the steady supercavitating flow was analyzed, and a numerical simulation of ventilated cavitation and tail jet flow field of a 2D underwater vehicle model was performed by using calculation fluid dynamics (CFD). Supercavitating flow was analyzed at different tail jet temperature when the attack angle of the vehicle model was zero degree. The law of influence of tail jet temperature on supercavition was achieved, which agree with experimental result.
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[1] Savchenko Yu N. Supercavitation-Problems and Perspectives [C] //4th International Symposium on Cavitation California. California Institute of Technology, 2001. [2] Wosnik M, Schauer T J. Experimental Study of Ventilated Supercavitating Vehicle[C] //CAV2003. Osaka, Japan,November 1-4. 2003. [3] 袁绪龙,张宇文,王育才,等. 水下航行体通气超空泡非对称性研究[J]. 力学学报, 2004, 36 (2) : 146-150. Yuan Xu-long, Zhang Yu-wen,Wang Yu-cai, et al. On Asymmetry of Ventilated Supercavity of Underwater Vehicle[J]. Chinese Journal of Theoretical and Applied Mechanics, 2004, 36 (2): 146-150. [4] 党建军,刘统军,胥银. 尾部喷流问题对定常超空泡影响的数值研究[J]. 鱼雷技术, 2007, 15(6) : 50-52. Dang Jian-jun,Liu Tong-jun, Xu Yin. Experimental Technology for Investigating Tail Jet Influence on Supercavitation Flow[J]. Torpedo Technology, 2007, 15 (6): 50-52. [5] 袁绪龙,张宇文,杨武刚. 空化航行体典型空化器多相流CFD分析[J]. 弹箭制导学报, 2005, 25(1) : 53-59. Yuan Xu-long, Zhang Yu-wen, Yang Wu-gang. Multiphase CFD Analysis of Typical Cavitator for High-Speed Supercavitating Underwater Vehicle[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2005, 25(1): 53-59. [6] 于开平,蒋增辉. 超空泡形状计算及相关试验研究[J]. 飞航导弹, 2005, 12: 15-22. [7] 于胜春,汤龙生. 固体火箭发动机喷管及羽流场的数值分析[J]. 固体火箭技术, 2004, 27 (2) : 95-97. Yu Sheng-chun, Tang Long-sheng. Numerical Analysis of Nozzle and Plume Flow Field of a Solid Rocket Motor[J].Journal of Solid Rocket Technology, 2004, 27 (2) : 95-97. [8] 王福军. 计算流体力学分析——CFD软件原理与应用[M]. 北京:清华大学出版社, 2004.
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