增程制导航弹绕流场数值模拟  

Extended Range Guided Weapon Flow Field Numerical Simulation

作　　者：许晓平[1] 

机构地区：[1]西北工业大学航空学院,陕西西安710072

出　　处：《飞机设计》2012年第1期1-3,8,共4页Aircraft Design

摘　　要：研究某增程制导航弹绕流场的结构,为气动特性分析和外形改进提供依据。以三维N-S方程为主控方程,引入S-A一方程湍流模型,对某增程制导航弹的绕流场进行了数值模拟,给出了流场图像和气动特性计算结果,并将CFD计算结果与试验结果进行了比较分析。CFD计算结果与试验结果吻合良好,验证了所采用CFD方法的准确性和有效性,数值模拟结果已得到应用。Based on the three-dimension Navier-Stokes equations coupled with Spalart-Allmaras turbulence model,the computational fluid dynamics(CFD) numerical simulation was used to investigate the aerodynamic characteristics of guided weapon with diamond back wing.Through the simulation the flow field structures and computational aerodynamic characteristics were obtained.Computational aerodynamic characteristics were found to be in good agreement with wind tunnel test results.The numerical simulation results had been applied to analyze the aerodynamic characteristics and optimize the configuration of guided weapon with diamond back wing in engineering design.

关 键 词：制导航弹 滑翔增程 钻石背弹翼 气动特性 数值模拟 

分 类 号：TJ7[兵器科学与技术—武器系统与运用工程]