Abstract:

Scramjet is a key technology in developing the hypersonic vehicle. Hypersonic missiles, aircraft and aerospace plane are based on scramjet and significantly important to future space battle and transportation. Thermodynamic cycle efficiency of hypersonic airbreathing engine is analyzed using thermal engine closed cycle analysis, a quasi onedimensional performance calculation model of hypersonic airbreathing engines is developed by onedimensional flow approaches using the entire set of control volume conservation equations, and the influence of some potentially important parameters are analyzed. 

Key words: hypersonic , vehicle,  , scramjet,  , performance , calculation,  , quasi , onedimensional