关键词: 冲压发动机;突扩燃烧室;回流区;燃烧稳定性

Abstract: This paper presents a dump combustor which was designed based on research accomplishment. The velocity in the main dump section is reduced in the combustor while the main dump area ratio is not changed. A series of tests were conducted on a direct connected test bench with RP-1 common kerosene. The preliminary test result shows that the combustor can be reliably ignited under the condition of large nozzle throat, the combustion process is stable and combustion efficiency is high.

Key words: Ramjet engine;Dump combustor;Recirclation zone;Combu-stion stability