电点火方式下绿色无毒ADN基液体推进剂着火及燃烧机制研究

为了解决目前空间推进领域绿色无毒二硝酰胺铵（ADN）基推力器催化燃烧方式无法冷启动及不能应用于大推力的问题，世界航天强国都在积极探索主动点火技术路线的ADN基推力器的研发。申请人及团队在国际上率先成功实现了ADN基液体推进剂电点火燃烧，基于前期研究基础，本项目围绕电点火方式下ADN基液体推进剂着火及燃烧过程中若干复杂作用机制开展研究。研究不同升温条件下ADN基液体推进剂蒸发分解机理，探明电点火方式下蒸发分解对ADN基液体推进剂着火燃烧的影响机制；开展电点火方式下ADN基液体推进剂液滴着火燃烧特性研究，探明ADN基液体推进剂燃烧过程中液滴形态演变和燃烧放热之间的耦合关系，揭示液滴和火焰相互作用机制；利用电点火方式实现ADN基液体推进剂流动状态下着火及燃烧，揭示实现流动状态下ADN基液体推进剂的稳定燃烧调控机制。该研究对于基于电点火方式的新一代绿色无毒ADN基推力器的研发具有重要意义。

In order to solve the problem that the green non-toxic ADN based thrusters can not be cold started and applied to large thrusts which in catalytic combustion mode in the field of space propulsion, the aerospace powers have been exploring the research of ADN based thrusters with active ignition technology. The applicant and team successfully achieved the electric ignition of ADN based liquid propellant. Based on the research foundation, the research on the ignition and combustion mechanism of the green non-toxic ADN based liquid propellant based on the electrical ignition mode will be carried out. The evaporation and decomposition process of ADN based propellant will be studied, and the influence mechanism of evaporation and decomposition on the ignition of ADN based propellant under the condition of electrical ignition will be explored. The ignition and combustion characteristics of ADN based propellant under the condition of electrical ignition will be studied, the relationship between the droplet development and combustion heat release will be clarified, and the interaction mechanism between droplets and flame will be revealed. The ignition and combustion of ADN based propellant in flowing state will be realized by electrical ignition, and the regulation mechanism of stable ignition and combustion of ADN based propellant in flowing state is revealed. This research is of great significance for the development of a new generation of green non-toxic ADN based thrusters based on the electrical ignition.