导弹构形横向喷流干扰流场数值模拟  

Numerical Simulation of Flow Field of Lateral Jet Interaction for Missile Configurations

作　　者：刘耀峰[1] 徐文灿[1] 吴甲生[1] 

机构地区：[1]北京理工大学机电工程学院,北京100081

出　　处：《北京理工大学学报》2006年第1期5-9,共5页Transactions of Beijing Institute of Technology

摘　　要：利用对称TVD格式和重叠网格技术数值模拟了翼面位置不同的两种导弹构形的横向喷流干扰流场,研究了喷口附近的流场结构、涡系结构、波系结构及流动分离等流场特性及翼面位置对干扰效应及气动性能的影响,并将计算得到的干扰力放大因子和干扰力矩系数的结果与实验结果进行比较,吻合良好.The overlapping grid technique and symmetric TVD scheme are used to simulate the flow field of lateral jet interaction for two missile configurations. The vortex and wave structures of this flow field are shown and the topology of separation flow is given according to the computational resuits. The interaction effects on aerodynamic characteristic are studied. The influence of the location of surfaces on the amplification of jet thrust is investigated. The computational amplification factor and the moment coefficient of interaction are also given and well agreement with the experimental data.

关 键 词：横向喷流 数值模拟 重叠网格 对称TVD格式 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]