[1]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,(03):330-334.
 YI Wen-jun,LI Tie-peng,XIONG Tian-hong,et al.Simulation on Natural Supercavitation Characteristics of Underwater High-speed Vehicle[J].Journal of Nanjing University of Science and Technology,2009,(03):330-334.
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水下高速航行体自然超空泡形态特性仿真研究
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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:
2009年03期
页码:
330-334
栏目:
出版日期:
2009-06-30

文章信息/Info

Title:
Simulation on Natural Supercavitation Characteristics of Underwater High-speed Vehicle
作者:
易文俊1 李铁鹏2 熊天红1 王中原1
1. 南京理工大学瞬态物理国家重点实验室, 江苏南京210094; 2. 海军装备部兵器部, 北京100841
Author(s):
YI Wen-jun1LI Tie-peng2XIONG Tian-hong1WANG Zhong-yuan1
1.National Key Laboratory of Transient Physics,NUST,Nanjing 210094,China;2.Ordnance Mission,Naval Armament Department,Beijing 100841,China
关键词:
水下航行体 超空泡 空化 计算流体力学
Keywords:
underwater vehicles supercavitation cavitation computational fluid dynamics
分类号:
U661.1
摘要:
为使水下高速航行体获得减阻量,基于均匀多相流假设,建立了水下高速航行体自然超空化流动的多相流计算流体力学模型。应用商业软件Fluent 6.2进行了水下高速航行体自然超空泡计算,对比分析了带圆锥和圆盘空化器的两种高速航行体形成超空泡的空泡长度、空泡直径、空泡含汽率和航行体表面的空泡厚度等超空泡形态特性。数值模拟了带圆盘空化器头部航行体的超空泡流发展过程,获得了航行体的超空泡形态变化特性。仿真结果表明:圆盘头形空化器有利于航行体超空泡的形成;超空泡的相对直径与相对长度随空化数增加而减小;在水下高速航行过程中
Abstract:
Based on the homogeneous flow hypothesis,a multi-phase computational fluid dynamics model of natural supercavitation flow around underwater high-speed vehicle is developed to achieve drag reduction.The supercavitation flow of a vehicle is simulated numerically using the commercial software Fluent 6.2.The supercavitation characteristics of two vehicle models,namely disk cavitator and conical cavitator,are analyzed comparatively based on the length,diameter,gas volume fraction and thickness of their cavitations.The development process of supercavitation flow for a vehicle with a disk cavitator is shown,and the variation of the natural supercavitation characteristics of the high-speed vehicle is obtained.The results show that the disk cavitator is advantageous for supercavitation formation,and the relative diameter and length of supercavitation decreases with the increase of cavitation number.The slenderness ratio for stable supercavitation formation of a high-speed underwater vehicle is very high,and the instable state occurs with the decrease of the vehicle speed.

参考文献/References:

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相似文献/References:

[1]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,(04):464.
 YI Wen-jun,LI Yue-jie,WANG Zhong-yuan,et al.Characteristics of Cavity Shape for Underwater High-speed Projectile at Small Attack Angle[J].Journal of Nanjing University of Science and Technology,2008,(03):464.
[2]熊天红,张 木,易文俊,等.小空化数下带尾翼射弹超空泡减阻试验与数值模拟[J].南京理工大学学报(自然科学版),2013,37(02):244.
 Xiong Tianhong,Zhang Mu,Yi Wenjun,et al.Experimental and numerical investigation of supercavity drag reduction of wing-projectiles under small cavitation number[J].Journal of Nanjing University of Science and Technology,2013,37(03):244.

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, 副研究员, 主要研究方向: 超空泡减阻技术, E-ma il: Yiwen jun0@ 163. com。
更新日期/Last Update: 2012-11-19