整体式液体冲压发动机分流方案燃烧室试验研究

AN EXPERIMENTAL INVESTIGATION ON THE COMBUSTOR WITH BYPASS FLOM IN INTEGRAL LIQUID FUEL RAMJET

关键词:  冲压发动机  突扩燃烧室  回流区  燃烧稳定性

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

摘要:

文中介绍了一种基于现有研究成果设计的突扩燃烧室。在这种燃烧室中,主突扩截面的气流速度降低,但是主突扩比没有改变。在直连式试车台上对该方案进行了试验,使用的燃料为RP-1普通煤油。初步研究结果表明,该方案在大喷管条件下点火起动可靠,燃烧过程比较稳定,燃烧效率高。

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.