|Table of Contents|

Investigation on Natural Supercaviting Characters of Underwater High-speed Fin-stability Projectile

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2011年02期
Page:
178-181186
Research Field:
Publishing date:

Info

Title:
Investigation on Natural Supercaviting Characters of Underwater High-speed Fin-stability Projectile
Author(s):
YI Wen-junZHANG MuCHEN Zhi-huaTAN Jun-jie
Science and Technology on Transient Physics Laboratory,NUST,Nanjing 210094,China
Keywords:
supercavitation cavitators hydrodynamics fins stability
PACS:
U661.1
DOI:
-
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.

References:

[1] 孟庆昌,张志宏,刘巨斌,等. 水下高速航行体超空 泡流动研究进展[J]. 船海工程, 2006( 6) : 26 - 29.
[2] David R S,Robert B C. High-Speed Supercavitating Vehicles[R]. AIAA 2006 - 6441.
[3] Logvinovich G V. Some problems of supercavitating flows[A]. Proceedings of NATO-AGARD[C]. Ukraine: NAS-IHM, 1997: 36 - 44.
[4] Savchenko Yu N. Supercavitation-problems and perspectives [A]. 4th International Sysmposium on Cavitation [C]. California: California Institute of Technology,2001 ( Lecture -003) : 1 -8.
[5] 朱炳贤. 美国的快速机载灭雷系统[J]. 水雷战和舰 船防护, 2005( 3) : 12 - 16.
[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] 杨莉,张庆明. 超空泡技术应用现状和发展趋势 [J]. 战术导弹技术,2006( 5) : 6 - 10.
[8] 刘玉秋,张嘉钟,于开平,等. 非流线型射弹超空泡 减阻的实验分析和数值模拟[J]. 哈尔滨工程大学 学报, 2006, 27( 3) : 335 - 338.
[9] 贾力平,于开平,张嘉钟,等. 空化器参数对超空泡形 成与发展的影响[J]. 力学学报,2007( 2) : 210 - 216.
[10] 曹伟,王聪,魏英杰. 自然超空泡形态特性的射弹试 验研究[J]. 工程力学, 2006, 23( 12) : 175 - 179.
[11] 易文俊,李月洁,王中原,等. 小攻角下水下高速射 弹的空泡形态特性[J]. 南京理工大学学报( 自然科 学版) , 2008, 32( 4) : 464 - 467.
[12] 易文俊,李铁鹏,熊天红,等. 水下高速航行体自然 超空泡形态特性仿真研究[J]. 南京理工大学学报 ( 自然科学版) , 2009, 33( 3) : 330 - 334.
[13] Kuboia A,Kuto H,Yamaguchi H. A new modeling of cavitating flows: a numerical study of unsteady cavitation on a hydrofoil section[J]. Fluid Mech,1992,240: 59 - 96.
[14] Savchenko Yu N. Investigation of high-speed supercavitating underwater motion of bodies[A]. Proceedings of NATO-AGARD[C]. Ukraine: NAS-IHM,1997: 20 - 1, 12. 186

Memo

Memo:
-
Last Update: 2012-04-30