航空学报 > 2008, Vol. 30 Issue (6): 1436-1439

飞机舱盖重心位置对舱盖抛放轨迹影响的数值模拟

赵会强1,2,钟诚文1,2,韩王超1,2

  

  1. 1.西北工业大学 翼型、叶栅空气动力学国防科技重点实验室 2.西北工业大学 高性能计算研究与发展中心
  • 收稿日期:2007-09-05 修回日期:2007-12-10 出版日期:2008-11-25 发布日期:2008-11-25
  • 通讯作者: 钟诚文

Numerical Simulation of Aircraft Canopy Trajectory with Different Centers of Gravity

Zhao Huiqiang1,2,Zhong Chengwen1,2,Han Wangchao1,2   

  1. 1.National Key Laboratory of Aerodynamic Design and Research,Northwestern  Polytechnical University 2.Center for High Performance Computing, Northwestern Polytechnical University
  • Received:2007-09-05 Revised:2007-12-10 Online:2008-11-25 Published:2008-11-25
  • Contact: Zhong Chengwen

摘要: 通过求解雷诺平均N-S方程,应用嵌套动网格技术结合6-DOF运动方程,成功实现了F/A-18C战机的座舱盖抛放轨迹的数值模拟。同时,分析了座舱盖重心位置的不同对舱盖飞行轨迹和飞行姿态的影响,得出F/A-18C战机座舱盖的重心后移能缩短抛放时间,优化飞行轨迹的结论。

关键词: 座舱盖, Navier-Stokes方程, 6-DOF运动方程, 重心, 轨迹

Abstract: Aircraft canopy trajectory of fighter F/A-18C was successfully simulated with solving the Reynolds-Averaged Navier-Stokes equations and the 6-DOF motion equations based on the moving grid technique. The effects of trajectory and the states of the canopy caused by different positions of the center of gravity of the canopy were analysed. The conclusion was educed that the retrusive center of gravity could cut the period of the jettison and optimize the flight trajectory.

Key words: canopy, Navier-Stokes equation, 6-DOF motion equation, center of gravity, trajectory

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