Aerodynamic configuration of hypersonic vehicle based on waverider body design
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摘要: 采用基于无粘锥形流的反设计方法以Ma=6为设计点设计具有高升阻比的乘波体外形;取基准圆锥激波角为12°,并利用上表面的膨胀降压作用,这一外形优化有效提高了乘波体的升阻特性,在考虑粘性影响的情况下Ma=6时的升阻比可从3.356 3提高到4.598 1;将具有高升低阻效能的乘波体作为机身初步设计单级入轨运载器布局,通过数值模拟的方法进行研究,结果表明布局在大速度范围内的升阻比得到了令人满意的结果,同时具备静稳定性.Abstract: The waverider with high lift-drag ratio was designed by the inverse-design method based on inviscid conical shock wave. When the basic conical shock wave is 12°, an effective improvement of the lift-drag ratio was obtained for the effect of the decrease of the pressure on the upper surface of the waverider. As the result of the figuration optimization, the value of lift-drag ratio increased to 4.598 1 from 3.356 3 taking account of the viscous effect at Mach 6. An hypersonic configuration of the single-stage-to-orbit(SSTO) adopting the waverider with high lift and low drag as the body was designed. Through the way of numerical simulation, the primary result shows that this configuration with static stability has a satisfying value of L-D ratio.
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Key words:
- aerodynamic configuration /
- aerodynamic characteristics /
- lift-drag radio /
- waverider /
- static stability
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