[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):545-548.
 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,(05):545-548.
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水下射弹空化器参数对自然超空泡形态的影响
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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:
2008年05期
页码:
545-548
栏目:
出版日期:
2008-10-30

文章信息/Info

Title:
Effect of Cavitator Parameters for Underwater Projectiles on Natural Supercavity
作者:
熊天红;易文俊;吴军基;刘怡昕;
南京理工大学弹道国防科技重点实验室, 江苏南京210094
Author(s):
XIONG Tian-hongYI Wen-junWU Jun-jiLIU Yi-xin
National Key Laboratory of Transient Physics,NUST,Nanjing 210094,China
关键词:
射弹 空化器 空化数 自然超空泡
Keywords:
projectiles cavitators cavitation number natural supercavity
分类号:
U661.1
摘要:
为获取有效减阻的自然超空泡形态特性,利用CFD商业软件Flunt 6.0,基于均匀多相流假设,建立了水下射弹自然超空泡流动的多相流模型。在射弹最大初速度500 m/s、最小空化数为0.001 55的条件下,计算了圆锥和圆盘两种空化器头部射弹模型的超空泡形态。分析了头型、直径、锥角、空化数等对自然超空泡形态特性的影响。仿真结果表明:自然超空泡的尺寸变化主要取决于空化数与空化器参数;圆盘头型空化器更利于射弹超空泡的形成;空化器的直径和锥角过小都不易产生自然超空泡。
Abstract:
In order to obtain the characteristics of natural supercavity form with perfect reducible drag,and based on homogeneous flow hypothesis,a multi-phase model of natural supercavity flow for underwater projectiles is built using commercial CFD software Fluent 6.0.Supercavity form of several projectile model with disk cavitator and coniform cavitator are calculated under the maximal velocities of 500 m/s and the minimum cavity number of 0.001 55.The influence of headforms,diameters,cone angles,cavitation numbers on the characteristics of natural supercavity form is analyzed.The results show: the size of the natural supercavity is determined by the cavitation numbers and cavitators,the disk cavitator is valid for supercavity formation,and the smaller the diameter and the cone angle of cavitator are,the harder the natural supercavity is formed.

参考文献/References:

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备注/Memo

备注/Memo:
基金项目: 国防重点实验室基金 ?? 作者简介: 熊天红( 1977- ), 女, 河南信阳人, 博士生, 主要研究方向: 超空泡流场分析与数值模拟研究; 通讯作 者: 易文俊( 1970- ) , 男, 湖南宁乡人, 副研究员, 主要研究方向: 远程精确打击弹箭弹道理论与技术, E_mail: w jy@ mail. njust. edu. cn。
更新日期/Last Update: 2012-12-19