摘要
出于飞行安全的目的,开展了强源场干扰下飞行物气动特性的三维数值模拟工作.建立了三维力学模型,采用验证过的数值方法求解其控制方程组,给出飞行物承受强源场干扰的流场演化,计算得出飞行物气动特性的实时变化.模拟与计算结果表明,强源场的干扰效应一方面依赖于飞行物受扰动前的巡航速度,另一方面受制于强源场演化状态.
A three-dimensional numerical investigation into aerodynamic characteristics for a slender body of revolution under strong-source-field disturbance was conducted for the sake of flight security.The problem was modelled as a three dimensional fluid dynamic model and then its governing equations were solved by the verified numerical methods.The solutions give not only the evolution of the flow field but also the aerodynamic characteristics of slender body of revolution,which indicates that the disturbance effects largely depend on both the incoming cruising speed of the slender body and the evolution of strong source field.
作者
徐明
王政
李华
张树道
洪滔
付峥
董志伟
安建祝
董航
XU Ming;WANG Zheng;LI Hua;ZHANG Shudao;HONG Tao;FU Zheng;DONG Zhiwei;AN Jianzhu;DONG Hang(Institute of Applied Physics and Computational Mathematics,Beijing 100094,China)
基金
国防基础科研计划(B1520132012)资助
关键词
强源场
干扰效应
飞行物
非定常气动特性
有限体积法
strong source field
disturbance effect
slender body of revolution
unsteady aerodynamic characteristics
finite volume method
