The analysis on infrared radiant properties of hypersonic vehicle

With the rapid development of the hypersonic flight technology, the strategic significance and application value of hypersonic vehicle are even more and more important. The radiation source of hypersonic vehicle mainly comes from the aerodynamic heat generated in the high-speed flight. This paper presents the detailed principle and research of the air radiant properties and aerodynamic heat. The present work has laid a foundation for the further deepening of the infrared radiation characteristics of hypersonic vehicles and infrared stealth characteristics. Beside of these, the assumption that the flow field and the radiation field are decoupled is adopted.