[1]易文俊,张木,陈志华,等.带尾翼高速射弹自然超空泡流特性研究[J].南京理工大学学报(自然科学版),2011,(02):178-181186.
 YI Wen-jun,ZHANG Mu,CHEN Zhi-hua,et al.Investigation on Natural Supercaviting Characters of Underwater High-speed Fin-stability Projectile[J].Journal of Nanjing University of Science and Technology,2011,(02):178-181186.
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带尾翼高速射弹自然超空泡流特性研究
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2011年02期
页码:
178-181186
栏目:
出版日期:
2011-04-30

文章信息/Info

Title:
Investigation on Natural Supercaviting Characters of Underwater High-speed Fin-stability Projectile
作者:
易文俊张木陈志华谭俊杰
南京理工大学瞬态物理国家重点实验室,江苏南京210094
Author(s):
YI Wen-junZHANG MuCHEN Zhi-huaTAN Jun-jie
Science and Technology on Transient Physics Laboratory,NUST,Nanjing 210094,China
关键词:
超空泡 空化器 水动力 尾翼 稳定性
Keywords:
supercavitation cavitators hydrodynamics fins stability
分类号:
U661.1
摘要:
为了获得良好的超空泡减阻效果,针对某30 mm带尾翼高速射弹,设计了其空化器结构参数,研究了尾翼射弹的空泡轮廓、射弹表面空泡厚度分布、运动攻角对其空泡形态的影响,计算了超空泡形态下不同攻角时带尾翼射弹的水动阻力、升力、稳定力矩等参数;对比研究了带尾翼高速射弹和普通射弹的运动稳定性,给出了2种射弹的摆动攻角曲线。研究结果表明,尾翼结构不改变射弹的超空泡形态参数,但影响其表面空泡厚度分布;尾翼结构对射弹的超空泡形态、阻力特性影响很小,可大大提高射弹的运动稳定性。
Abstract:
In order to obtain the excellent drag-reduction performances of a high-speed supercavity projectile,several structure parameters of the cavitator are designed,and supercavitating flow characterics are analyzed for a 30 mm high-speed fin-stability projectile.The supercavitation performances are analyzed with the use of cavitation profiles,the projectile cavitation distribution,and the influences on angle of attack.The hydrodynamic parameters such as hydrodynamic drag,lift,stable moment of the projectile are calculated under the various angles of attack in the supercavitation condition.The shipping stability of these projectiles is investigated,and their oscillation angle of attack curves are calculated.The results show that the cavitation diameter and its length are found to have no relation with the fin structure parameters,but can modify the cavitation profiles of the projectile surface.The fin structure has little influences on projectile cavitation profiles and its hydrodynamic characteristics and the projectile with fin structure has good navigation stability.

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相似文献/References:

[1]熊天红,易文俊,吴军基,等.水下射弹空化器参数对自然超空泡形态的影响[J].南京理工大学学报(自然科学版),2008,(05):545.
 XIONG Tian-hong,YI Wen-jun,WU Jun-ji,et al.Effect of Cavitator Parameters for Underwater Projectiles on Natural Supercavity[J].Journal of Nanjing University of Science and Technology,2008,(02):545.

备注/Memo

备注/Memo:
基金项目:国防重点实验室基金 作者简介:易文俊( 1970 - ) ,男,博士,研究员,博士生导师,主要研究方向: 超空泡减阻技术,E-mail: yiwenjun0@ 163. com。
更新日期/Last Update: 2012-04-30