Document Type : Scientific extension

Authors

1 PhD student, Aerospace Research Institute, Ministry of Science, Research and Technology, Tehran, Iran

2 Assistant Professor, Aerospace Research Institute, Ministry of Science, Research and Technology, Tehran, Iran

Abstract

Most space missions fall in the hypersonic reentry regime. There are several open questions and unknown phenomena in aerothermodynamics around vehicles at flow regimes exceeding Mach 4 due to its inherent complexities. Strong entropy gradients, thick shock layers, dissociated high temperature flows, chemically reacting boundary layers, and viscous interactions are some of the unique flow features dominating the hypersonic flight regimes. It is possible to carry out a detailed analysis on spacecraft aerodynamics leading to an optimized design. Considering the complexity of the problem, desired accuracy of the analysis, and restrictions of numerical methods such as CFD, the experimental approach is preferred in most real-world projects. Due to the increasing importance of Hypersonic Aerodynamics in modern aerospace studies, this paper reviews the recent advances, technical achievements and industrial and scientific trends after presenting a brief introduction to the field. To be reviewed that hypersonic test facilities turn to a strategic asset for nations.

Keywords

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