摘要
针对多外挂物复杂飞行器干扰流场气动特性这一问题,采用先进的结构重叠网格数值计算方法,对复杂外形可快捷高质地完成网格生成,通过求解带有k-ε湍流模型的Navier-Stokes方程组,得到绕流外流场并分析了外挂物纵向与横向气动特性。结果表明:采用结构重叠网格数值方法模拟复杂几何外形流场是可行的,组合外挂物气动特性与其在自由流状态下完全不同。
Aiming at the difficulty problem for research on aerodynamic characteristic of flow past complicated aircraft with some external stores,a numerical computation method based on advanced structured overlapping grids is carried out,which can be used to deal with grid generation around complicated geometry shape quickly and beautifully.Through solving Navier-Stokes equation teams with k-ε turbulent model,outer flow field is reached and aerodynamic characteristic is analyzed.The results show that it is feasible to simulate the flow field past complicated geometry shape used overlapping structured grids,and both longitudinal and laterally aerodynamic characteristic of external store out of combination geometry are fully different with which in free flow field.
出处
《战术导弹技术》
2012年第6期16-21,37,共7页
Tactical Missile Technology
关键词
外挂物
结构重叠网格
气动特性
external store
structured overlapping grids
aerodynamic characteristic
