固体燃料超燃冲压发动机关键基础技术问题

Aiming at application background,technical advantages and development requirements of solid fuel scramjet,the main key basic technologies that restrict the further engineering application of solid fuel scramjet were systematically sorted out.The working principle of solid fuel scramjet,ignition and flame stability,regression rate model of burning surface,solid fuel types,the test stand technical characteristics and the working performance of solid fuel scramjet were introduced in detail.Research progress and difficulties of the solid fuel scramjet technology were analyzed,and the future research trend of solid fuel scramjet was prospected.It is believed that the detailed combustion reaction mechanism of solid fuel under supersonic flow needs to be further studied,and a more perfect supersonic detailed combustion model needs to be established.Considering different solid fuels and formulations,corresponding thrust performance and combustion efficiency can be also different,so it is necessary to promote solid propellant technology improvement;the measurement method of motor ground test is too single,and advanced measurement methods need to be developed.