Aerodynamic Analysis of Hypersonic Gliding Vehicles with Wide-Speed Range Based on the Cuspidal Waverider

IF 1 4区工程技术 Q4 MECHANICS Fluid Dynamics Pub Date : 2024-07-05 DOI:10.1134/s0015462823603285

Z. Xie, Z. T. Zhao, W. Huang, C. Y. Liu, G. Choubey

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Abstract

In order to study the variation in the lift performance as a function of the angle of attack of a hypersonic gliding vehicle under supersonic (hypersonic) conditions, the cuspidal waverider was taken as the object of this study, and the variation in the lift performance depending on the angle of attack was simulated for its design condition (M = 3.86 and H = 25 km) and hypersonic incoming flow condition (M = 8 and H = 25 km). It was also compared with the delta-wing Model 1 with the same leading-edge swept angle and Model 2 with the same spread length, respectively. The obtained results show that the zero-lift angle of attack and the critical angle of attack of the cuspidal waverider are both greater than those of the Model 1 and Model 2. The critical angle of attack increases with the free-stream Mach number for all three models. The maximum lift coefficient angle of attack on the upper surface of the cuspidal waverider decreases with increase in the Mach number, contrary to Models 1 and 2, and this relates to the degree of expansion of the free-stream flow conditions, the model layout, and the vortex structure formed on the leeward side.

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基于 Cuspidal Waverider 的宽速度范围高超音速滑翔飞行器气动分析

摘要为了研究高超音速滑翔飞行器在超音速（高超声速）条件下升力性能随攻角变化的函数关系，本研究以尖顶摇摆机为对象，模拟了其设计状态（M = 3.86，H = 25 km）和高超音速入流状态（M = 8，H = 25 km）下升力性能随攻角变化的情况。并分别与具有相同前缘后掠角的三角翼模型 1 和具有相同展弦长度的模型 2 进行了比较。结果表明，尖顶摇摆机的零升力攻角和临界攻角都大于模型 1 和模型 2。三种模型的临界攻角都随自由流马赫数的增加而增大。与模型 1 和模型 2 相反，尖顶摇摆机上表面的最大升力系数攻角随着马赫数的增加而减小，这与自由流条件的扩展程度、模型布局以及在背风面形成的涡流结构有关。

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来源期刊

Fluid Dynamics MECHANICS-PHYSICS, FLUIDS & PLASMAS

CiteScore

1.30

自引率

22.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Fluid Dynamics is an international peer reviewed journal that publishes theoretical, computational, and experimental research on aeromechanics, hydrodynamics, plasma dynamics, underground hydrodynamics, and biomechanics of continuous media. Special attention is given to new trends developing at the leading edge of science, such as theory and application of multi-phase flows, chemically reactive flows, liquid and gas flows in electromagnetic fields, new hydrodynamical methods of increasing oil output, new approaches to the description of turbulent flows, etc.