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...

绕带空化器回转体空化流动特性的试验研究

Keywords: 空化,回转体,数字式粒子成像测速仪

Full-Text   Cite this paper   Add to My Lib

Abstract:

为推动超空泡在水下兵器减阻领域的应用,采用试验的方法研究了绕超空泡回转体的自然空化流场特性.试验中,采用高速全流场流动显示技术获得了不同空化数下绕回转体的空泡形态,并运用粒子图像测速技术(DPIV)测量了相应工况下流场的时均速度和涡量分布.结果表明:随着空化数的降低,绕回转体空化区域不断增大,不同空化数下的空化区均为低速高湍流脉动区域,该区域的速度远小于主流速度,但存在大的湍流脉动;云状空化阶段,涡量聚集区由头部向后延伸的涡带逐步转化为涡团分布,且区域明显扩大.

References

[1]  Rouse H,McNown J S. Cavitation and pressure distribution, head forms at zero angel of yaw, studies in engineering[R]. Ames, Iowa: Iowa State University, 1948.
[2]  刘桦,朱世权,何友声,等.系列头体的空泡试验研究:初生空泡与发展空泡形态[J].中国造船,1995,1(3):98-102. Liu Hua, Zhu Shiquan, He Yousheng, et al. An experimental study on cavitating axisymmetric headforms[J]. Shipbuilding of China, 1995,1(3):98-102. (in Chinese)
[3]  Arakeri V H, Acosta A J. Viscous effects in the inception of cavitation on axisymmetric bodies[J].Journal of Fluids Engineering, 1973,95(4):519-527.
[4]  Wang G Y, Senocak I, Shyy W, et al. Dynamics of attached turbulent cavitating flows[J]. Progress in Aerospace Sciences, 2001,37(6):551-581.
[5]  Tassin A L, Li C Y, Ceccio S L, et al. Velocity field measurements of cavitaiting flows[J]. Experiments in Fluids,1995,20(2):125-130.
[6]  李向宾,刘淑艳,王国玉,等.绕水翼空化流动速度分布的DPIV测量预分析[J].兵工学报,2009,30(3):276-281. Li Xiangbin, Liu Shuyan, Wang Guoyu, et al. Digital particle image velocimetry measurement and analysis of velocity distribution in cavitating flows around a hydrofoil[J]. Acta Armamentarii, 2009,30(3):276-281. (in Chinese)
[7]  李向宾,刘淑艳,王国玉,等.绕水翼空化流场漩涡特性分析[J].北京理工大学学报,2007,27(9):753-755. Li Xiangbin,Liu Shuyan,Wang Guoyu, et al.Vortex characteristics in cavitating flows around a hydrofoil[J]. Transactions of Beijing Institute of Technology, 2007,27(9):753-755. (in Chinese)
[8]  黄彪,王国玉,胡常莉,等.绕平头回转体的空化流场研究[J].科学技术与工程,2010,10(35):8729-8735. Huang Biao, Wang Guoyu, Hu Changli, et al. Study on the cavitating flow around the blunt axisymmetric body[J]. Science Technology and Engineering, 2010,10(35):8729-8735. (in Chinese)
[9]  黄彪,王国玉,王复峰,等.非定常空化流场结构的实验研究[J].实验力学,2011,26(4):417-424. Huang Biao, Wang Guoyu, Wang Fufeng, et al. Experimental investigation on flow field structure of unsteady cavitation flow[J]. Journal of Experimental Mechanics, 2011,26(4): 417-424. (in Chinese)
[10]  Andrew J S,Brian D S,et al. Heat and mass transfer during the violent collapse of nonspherical bubbles[J]. Physics of Fluids,2003,15(9):2576-2586.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133