Investigation of the Aerodynamic Design Effect on Point Mass Flight Parameters in Hypersonic Glider

Document Type : Research Article

Authors

1 Qadr Aerodynamic Research Center, Imam Hossein University, Tehran, Iran

2 Imam Hossein University, Faculty of Engineering, Aerospace Science Group, Tehran, Iran

3 Faculty of Engineering. Imam Hussein University

Abstract

Hypersonic glide vehicles have been considered as untraceable systems with high maneuverability in recent years. On the other hand, flying in the range of maximum aerodynamic efficiency is important due to its effect on increasing range and improving air maneuverability. In this research, the hypersonic glider flight parameters including position and instantaneous velocity relative to the body profile and the amount of climb angle have been investigated using the point mass flight path determination method. The type of body profile has been selected due to the significant increase in aerodynamic efficiency and simplicity of redesign of other components, elliptic cross section. The study of aerodynamic coefficients in Mach 6.7 shows the high accuracy of the modified Newtonian method as the basis of calculations, which is then, corrected according to the flight conditions by the computational fluid dynamics. Due to the instantaneous changes in aerodynamic coefficients at each time step, depending on the altitude and Mach number, a two-way coupling between aerodynamic analysis and point mass flight is used. The results show a 54% increase in range and a 29% increase in incident speed with a decrease in body height. These values are 16% and 74% in the studies related to the radius of nose curvature and 44%, 25% in the study of the initial climb angle

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Amirkabir Journal of Mechanical Engineering
Volume 54, Issue 3
June 2022
Pages 649-670

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