飞行器以马赫数小于1的速度在大气中的飞行(见飞行速度)。最大平飞速度小于音速的飞机就是亚音速飞机。通常说飞行速度低于400千米/时的为低速飞机,M=0.8~0.9的为高亚音速飞机。
因此,有必要对亚音速飞行器的导航方案进行改进。
Therefore, it is necessary to improve the current navigation means of the subsonic vehicle.
亚音速飞行器具有飞行速度低,飞行时间长,低动态的特点。
The subsonic vehicle has the characteristics of low speed, longtime flight and low dynamics.
在进行亚音速气动分析时,应用线化速度势理论计算运载器的气动力系数,而后进行回归分析,得到运载器亚音速飞行时的气动特性模型。
For subsonic aerodynamic analysis, Linearized Velocity Potential Theory is used to evaluate the aerodynamic coefficient, and we can get subsonic aerodynamic model of vehicle by Regression analysis.
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