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The effect of conical flowfields on the performance of waveriders at Mach 6

机译：锥形流场对6马赫波乘器性能的影响

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摘要

The performance of 23 kinds of waveriders, derived from different conical flowfields, is analyzed by the numerical computation under the conditions of fight speed of Mach 6, attack angle of 0° and flight altitude of 30 km. These results indicate that the performance is influenced by the shapes and the width to height ratios (W/H) of generating cones. The geometrical parameter and the lift coefficient are proportional to W/H, while the drag coefficient and the lift to drag ratio (L/D) have extreme values. Considering the base drag and the computation errors, the waverider with the highest L/D is cut from the elliptical cone's flowfield (W/H = 1.5—1.618), and the configuration with the lowest drag can also be obtained at W/H= 1:1.5. Accordingly, good suggestions are proposed for practical design based on these computational results.
机译：通过数值计算，分析了在不同速度，6马赫的攻角，0°的攻角和30 km的飞行高度条件下，来自不同锥形流场的23种波导管的性能。这些结果表明，性能受生成圆锥体的形状和宽高比（W / H）的影响。几何参数和升力系数与W / H成正比，而阻力系数和升力/阻力比（L / D）具有极高的值。考虑到基本阻力和计算误差，从椭圆锥的流场（W / H = 1.5—1.618）切下具有最高L / D的波导管，并且在W / H =的情况下也可以获得具有最低阻力的配置1：1.5。因此，基于这些计算结果，为实际设计提出了很好的建议。

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