定后掠角密切锥乘波体的生成和设计方法

doi:10.7527/S1000-6893.2016.0024

Abstract

Abstract:

In this paper, the generation and design methods of osculating cone waverider with constant angle of sweepback (OCWRCAS) are studied, and viscous is considered during design. Stable vortex can be generated by the leading edge with constant angle of sweepback, which will improve the aerodynamic ability of the waverider. Firstly, the generation method of OCWRCAS is presented based on the generation method of traditional osculating cone waverider. The design variables of sweepback angle, shock angle and the curve shape of head are extracted by analyzing the geometry character of the OCWRCAS, and the variation trend of lift to drag ratio and volumetric efficiency with these variables is also studied. The multi-objective optimal solutions are founded from two classical types of OCWRCAS by searching the total design space. Finally, the method of computational fluid dynamics is used to verify the character of wave riding and vortex lift. The results show that OCWRCAS with good ability of wave riding and high lift to drag ratio keeps relational volumetric efficiency; vortex lift can be generated by the leading edge with constant angle of sweepback at certain angle of attack.

Key words: waverider, osculating cone, viscous, angle of sweepback, vortex lift

CLC Number:

V211.5

DUAN Yanhui, FAN Zhaolin, WU Wenhua. Generation and design methods of osculating cone waverider with constant angle of sweepback[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(10): 3023-3034.

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Generation and design methods of osculating cone waverider with constant angle of sweepback

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