固体火箭发动机燃烧主动调控技术研究进展

Controlling solid propellant combustion by means of energy field introduces a novel approach to energy management technology for solid rocket motors. However, the intricate effect of energy field on propellant combustion is unclear, which leads to suboptimal efficiency in regulating combustion performance and limits the practical engineering application of active energy control technology. The new active combustion control technologies such as electric field control, ultrasonic control and magnetic field control and their control mechanisms were reviewed. Two critical aspects were put forward: the mechanical-thermal interaction mechanism of high-temperature aluminum droplets in the charged flame of the propellant, and the control mechanism for the multiphase coupling effect of energy field on the propellant combustion process. Future research focus were prospected, initially, the combustion process and Coulomb splitting effect of aluminum particles in electric field under high temperatures need be examined using single-particle laser ignition technology and molecular dynamics simulations. Subsequently, the action mechanism of electric field on the multi-flame structure of the propellant will be revealed through ultra-fine thermocouple temperature measurements and numerical simulations of electric field-BDP flame combustion. By conducting high-pressure electric combustion test and employing condensed phase combustion product evaluation techniques, the energy release characteristics of the propellant in electric fields under high-temperature and high-pressure conditions can be obtained. Lastly, by establishing a gas-solid coupling relationship, an electric field coupling propellant multi-phase combustion model will be proposed to facilitate the efficient regulation of propellant combustion. The research results can provide new ideas, new theories and methodologies for applying electric field coupling energy release technology in solid propellants. It is anticipated to establish a robust technical foundation for the innovative advancement of solid rocket motor technology.