It is shown that the technique can obviously reduce the aerodynamic drag coefficient of the model.
结果表明：内部声激励能够明显地降低车身模型的空气阻力系数。
By extending length of the test floor properly, the aerodynamic drag coefficient can be measured more precisely.
适当延长地板，可提高气动阻力系数的测量精度。
The change rules of aerodynamic parameters including lift coefficient, drag coefficient and pitch moment coefficient have been analyzed when Angle of attack and fuel flow rate is changed.
考虑了不同飞行攻角、不同燃料流率下气动参数，包括升力系数、阻力系数和俯仰力矩系数的变化规律。
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