沙丘火焰稳定器在冲压发动机上的应用研究

THE INVESTIGATION OF APPLYING THE BARCHANE DUNE VORTEX GENERATOR INTO THE RAMJET

关键词:  火焰稳定性  冲压式喷气发动机  燃烧稳定性  试验  研究

Key words:  Flame stability  Ramjet enyine  Combustion stability  Test  Rese-arch

摘要:

沙丘火焰稳定器是一种新型的火焰稳定装置,将它应用于冲压发动机中,尚有许多实际技术问题需要解决.沙丘火焰稳定器在全尺寸冲压发动机上试验结果表明:在发动机点火、稳定燃烧、燃烧效率及流阻损失等方面均优于V型槽火焰稳定器,特别是流阻损失小,可使发动机的临界推力提高,具有很好的应用价值.

Abstract:

This paper reveals the exploration of applying the Barchane Dune vortex generator-a new kind flameholder in a ramjet.Although some technical problemsstill need to be solved experimental results show that the Barchane Dune vortexgenerator is superior to the V-gutter in ignition, stable combustion, combustionefficiency and flow dragloss as used in ramjet.The decrease of flow dragloss makes the critical thrust of ramjet increase about 6-9% .