一种双体导弹气动特性数值模拟  

Numerical Simulation of Aerodynamic Characteristics of a Double-body Missile

作　　者：申遂愿 朱清华[1] 陈建炜 王坤 曾嘉楠 朱振华 丁正原 SHEN Sui-yuan;ZHU Qing-hua;CHEN Jian-wei;WANG Kun;ZENG Jia-nan;ZHU Zhen-hua;DING Zheng-yuan(Nanjing University of Aeronautics&Astronautics,National Key Laboratory of Rotorcraft Aeromechanics,Jiangsu Nanjing 210016,China)

机构地区：[1]南京航空航天大学直升机旋翼动力学国家级重点实验室,江苏南京210016

出　　处：《现代防御技术》2020年第3期11-15,30,共6页Modern Defence Technology

基　　金：江苏高效优势学科建设工程基金。

摘　　要：双体导弹是一种通过弹翼将2个单体导弹机体连接为一体的特殊构型导弹,因此具有独特的气动特性。基于FLUENT软件采用S-A(Spalart-Allmaras)湍流模型分析了单体导弹和双体导弹在不同马赫数及迎角状态下的气动特性,研究了2种构型的气动特性差异。计算结果表明:双体导弹较单体导弹拥有更优的升力能力,但其所受阻力更大,升阻比下降;2种构型导弹阻力均随着迎角的增大而减小,且马赫数越大其减小幅度越小。The double-body missile is a special-structured missile that is formed by two single missile bodies connected together through a shared wing,and thus has unique aerodynamic characteristics.Using the FLUENT software,and spalart-allmaras(S-A)turbulence model,aerodynamic characteristics of single and double-body missiles under different Mach number and angle of attack are analized.The aerodynamic characteristics differences between the two configurations are studied.The calculation results show that:a double-body missile has better lift capacity than a single-body missile,but its resistance is greater,and the lift-to-drag ratio decreases.The resistance of the two types of missile decrease with the increase of attack angle,and their drag reduction amplitudes decrease along with the increase of Mach number.

关 键 词：双体导弹 单体导弹 Spalart-Allmaras湍流模型 马赫数 迎角 气动特性 

分 类 号：TJ760.1[兵器科学与技术—武器系统与运用工程] TP391.9[自动化与计算机技术—计算机应用技术]