首页 | 本学科首页   官方微博 | 高级检索  
     

外形参数对矩形截面弹体气动和隐身特性的影响
引用本文:郝璐,雷娟棉,吴甲生. 外形参数对矩形截面弹体气动和隐身特性的影响[J]. 北京理工大学学报, 2005, 25(4): 289-293
作者姓名:郝璐  雷娟棉  吴甲生
作者单位:北京理工大学机电工程学院,北京理工大学机电工程学院,北京理工大学机电工程学院 北京 100081,北京 100081,北京 100081
基金项目:国家部委预研项目(4013130302)
摘    要:用流体动力学(CFD)数值模拟方法和图形算法(GRECO),对机载布撒器绕流场进行了数值模拟和雷达散射截面(RCS)的计算,得到气动特性数值计算结果与风洞试验结果,RCS计算结果与外场测量结果均十分吻合.在此基础上研究了矩形截面宽高比和圆角半径比对弹体气动特性和隐身特性的影响.计算结果表明,建立外形参数与气动和隐身特性关系数据库、发展基于数据库的气动特性和隐身特性的工程计算方法,是进行布撒器等非常规外形和特种部件气动设计和RCS设计的有效途径.

关 键 词:非圆截面弹体  气动特性  隐身特性  布撒器  数值计算
收稿时间:2004-06-07

Numerical Study of Aerodynamic and Stealth Characteristics of Missiles with Rectangular Cross-Section
HAO Lu,LEI Juan-mian and WU Jia-sheng. Numerical Study of Aerodynamic and Stealth Characteristics of Missiles with Rectangular Cross-Section[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2005, 25(4): 289-293
Authors:HAO Lu  LEI Juan-mian  WU Jia-sheng
Affiliation:School of Mechatronics Engineering, Beijing Institute of Technology, Beijing100081, China;School of Mechatronics Engineering, Beijing Institute of Technology, Beijing100081, China;School of Mechatronics Engineering, Beijing Institute of Technology, Beijing100081, China
Abstract:Computational fluid dynamics (CFD) numerical simulation method was used to simulate the flow field of dispenser and graphical electromagnetic computing (GRECO) method was used to compute dispenser's radar cross section (RCS). Good agreements were obtained between the computed aerodynamic characteristics results and the wind tunnel test results and between the computed RCS and the outdoor measured results. Aerodynamic characteristics and RCS of rectangular cross-section missiles with variable width-to-thickness ratio and rounded corners radius ratio were calculated. It is an effective method for dispenser aerodynamic design and stealth design with the help of the calculated relational database between the bodies geometrical parameters and the dispenser aerodynamics characteristics or RCS.
Keywords:bodies with noncircular cross-section  aerodynamic characteristics  stealth characteristics  dispenser  numerical calculation
本文献已被 CNKI 维普 等数据库收录!
点击此处可从《北京理工大学学报》浏览原始摘要信息
点击此处可从《北京理工大学学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号