导弹地效区飞行空气动力和飞行力学特性研究

采用CFD和风洞试验技术,研究了导弹地效区飞行的空气动力和飞行力学相关特性。研究结果表明,导弹地效区飞行,由于受到地面效应的作用,其空气动力和飞行力学特性同常规自由空间飞行相比,发生了较大变化,常规导弹气动布局很难实现地效区飞行。由于地效区飞行运动响应十分复杂,加之飞行高度很低,这使现有飞行控制技术难以适应。这要求在气动布局设计中,必须将气动力、飞行力学和控制响应一体化考虑,气动布局技术是协调解决运动响应和动力学耦合的核心。

Investigation of Aerodynamics and Flight Mechanics Characteristics of Ground Effect Missile

Based on CFD and wind tunnel test, the aerodynamics and flight mechanics characteristics of the ground effect missile were studied. It is shown that, comparing with the free space flight missile, the aerodynamics and flight mechanics characteristics of the ground effect missile change greatly by ground effect. Therefore it is difficult to fly in the ground effect area with the general aerodynamic configuration of the normal missile. Because the missile is flying very low and the motion response of ground effect missile is very complex, the existing flight control technology is not adaptable. The aerodynamics, flight mechanics and control response should be handled in an integrative way by aerodynamic shape design. The aerodynamic shape design technology is the key to solve the problem in motion response and kinematic coupling.