摘要
为研究不同海拔高度发射燃气射流对地面及发射装置的影响,采用动网格更新方法和有限速率化学反应模型模拟了不同海拔高度导弹发射过程的燃气射流场,得到了不同高度的发射流场结构形态和壁面的温度与压力分布情况。研究结果表明,随着发射高度的增加,外界压强和射流速度降低,射流欠膨胀度增加,温度升高,随着被冲击面远离核心区,海拔高度对燃气射流对地面的影响程度变小。
To research the influence of the different launching altitude missile jet flow on the ground, the dynamic update method and finite rate chemistry model were used to simulate the different launching alti- tude missile jet flow. The launching flow field and wall temperature and pressure contour were obtained with different altitude. The results show that the pressure and flow velocity declined, the flow expansibili- ty and temperature increased with the increase of the launching altitude. The influence of the jet flow on the ground declined away from the core zone with the launching altitude.
出处
《战术导弹技术》
北大核心
2015年第4期19-23,共5页
Tactical Missile Technology
关键词
不同高度发射
燃气射流
冲击效应
different launching altitude
jet flow
impact effect
