全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
工程力学  2014 

水中测速涡轮高速旋转下的空化特性研究

DOI: 10.6052/j.issn.1000-4750.2013.05.0437

Keywords: 引信涡轮,高速旋转,空化,水洞实验,流体仿真

Full-Text   Cite this paper   Add to My Lib

Abstract:

水下常规弹药引信可利用外置涡轮获得其自身运动速度,研究高速旋转涡轮的空化特性对引信测速、测距误差的分析具有重要意义。该文从空化的发生和发展机理出发,针对水流速度为10m/s和8m/s下的不同空化数,分别利用数值仿真和空化水洞实验对涡轮空化形态和动力学特性进行了研究,并分析了空化条件下的涡轮转动。根据仿真和实验的结果,对涡轮空化发展的各阶段特征进行了分析比较。结果表明,数值方法能较好的预测涡轮空化的发展规律和空化下的涡轮动力特性;在一定的水流速度下,涡轮的转动速度随空化数的降低先略有升高然后降低;在一些水流速度和空化数下,涡轮转速信号具有明显的低频周期性变化。

References

[1]  Shen Dezhang, Zhang He, Li Haojie. A delay arming technical scheme for underwater rocket fuze based on external conformal turbine [C]. The 2nd International Conference on Computer Application and System Modeling, Shenyang, China, 2012: 0552―0555.
[2]  沈德璋, 张合, 李豪杰. 一种小型水下高速运动体的自主测速方法[J]. 仪器仪表学报, 2012, 33(12): 2697―2702.
[3]  Shen Dezhang, Zhang He, Li Haojie. Autonomous velocity measurement method for small underwater high velocity moving body [J]. Chinese Journal of Scientific Instrument, 2012, 33(12): 2697―2702. (in Chinese)
[4]  黄彪, 王国玉, 胡常莉, 等. 绕回转体初生空化流场特性的实验及数值研究[J]. 工程力学, 2012, 29(6): 320―325, 331.
[5]  Huang Biao, Wang Guoyu, Hu Changli, et al. Experimental study on fluctuating hydrodynamics around axisymmetric bodies [J]. Engineering Mechanics, 2012, 29(6): 320―325, 331. (in Chinese)
[6]  王亚东, 袁绪龙, 张宇文. 潜射导弹空化特性水洞模型试验研究[J]. 工程力学, 2013, 30(4): 442―447.
[7]  Wang Yadong, Yuan Xulong, Zhang Yuwen. Experimental investigation of cavitation characteristics of sub-launched missile models in water tunnel [J]. Engineering Mechanics, 2013, 30(4): 442―447. (in Chinese)
[8]  Wang G, Senocak I, Shyy W, et al. Dynamics of attached turbulent cavitating flows [J]. Progress in Aerospace Sciences, 2001, 37(6): 551―581.
[9]  Coutier-Delgosha O, Perrin J, Fortes-Patella R, et al. A numerical model to predict unsteady cavitating flow behaviour in inducer blade cascades [C]. Fifth International Symposium on Cavitation. Osaka, Japan, 2003: 1―8.
[10]  时素果, 余志毅, 俞启东, 等. 栅中水翼的空化流体动力特性[J]. 北京理工大学学报, 2010, 9(30): 1042―1046.
[11]  Shi Suguo, Yu Zhiyi, Yu Qidong, et al. Dynamical characteristics of cavitating flow around a cascade hydrofoil [J]. Transactions of Beijing Institute of Technology, 2010, 9(30): 1042―1046. (in Chinese)
[12]  陈晖, 李斌, 张恩昭, 等. 液体火箭发动机高转速诱导轮旋转空化[J]. 推进技术, 2009, 30(4): 390―395.
[13]  Chen Hui, Li Bin, Zhang Enzhao, et al. Rotating cavitation of the high-speed rotational inducer of LPRE [J]. Journal of Propulsion Technology, 2009, 30(4): 390―395. (in Chinese)
[14]  杨敏官. 轴流泵内部流场数值模拟及实验研究[J]. 工程热物理学报, 2010, 31(11): 1847―1850.
[15]  Li Zhong, Yang Minguan. Numerical simulation and experimental study of the interior flow in axial-flow pump [J]. Journal of Engineering Thermophysics, 2010, 31(11): 1847―1850. (in Chinese)
[16]  张勇传, 周建中, 彭玉成, 张克危. 轴流转桨式水轮机空化振动监测的试验研究[J]. 水力发电学报, 2008, 112(5): 142―146.
[17]  Zhan Liangliang, Zhang Yongchuan, Zhou Jianzhong, Peng Yucheng, Zhang Kewei. Experiment investigation of the cavitation vibration detection of Kaplan turbine [J]. Journal of Hydroelectric Engineering, 2008, 112(5): 142―146. (in Chinese)
[18]  水下火箭弹引信系统分析及关键技术研究[D]. 南京: 南京理工大学, 2008: 4―14.
[19]  Hou Chao. System analysis and key technology study for underwater rocket fuze [D]. Nanjing: Nanjing University of Science and Technoloy, 2008: 4―14. (in Chinese)
[20]  孔德仁, 王昌明. 水下弹丸头部形状设计研究[J]. 弹箭与制导学报, 2004, 24(3): 150―151.
[21]  He Yunfeng, Kong Deren, Wang Changming. The research about the shape of underwater bullet [J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2004, 24(3): 150―151. (in Chinese)
[22]  A P, Rott H K. The effect of flow turbulence on cavitation inception [J]. ASME FED Summber Meeting, Vancouver, 1997: 532―540.
[23]  A P. New scaling laws for hydrodynamic cavitation inception [C]. The 2nd International Symposium on Cavitation, Tokyo, Japan, 1994: 212―220.
[24]  G H, Sauer J. Physical and numerical modeling of unsteady cavitation dynamics [C]. Fourth International Conference on Multiphase Flow, New Orleans, USA, 2001: 1―8.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133