液体碳氢燃料超燃冲压发动机支板凹槽稳焰技术试验

推进技术 ›› 2011, Vol. 32 ›› Issue (5): 680-683.

液体碳氢燃料超燃冲压发动机支板凹槽稳焰技术试验

冮强,周乐仪,覃正,马雪松,郭金鑫

中国航天科工集团三十一研究所高超声速冲压发动机技术重点实验室;中国航天科工集团三十一研究所高超声速冲压发动机技术重点实验室;中国航天科工集团三十一研究所高超声速冲压发动机技术重点实验室;中国航天科工集团三十一研究所高超声速冲压发动机技术重点实验室;中国航天科工集团三十一研究所高超声速冲压发动机技术重点实验室

发布日期:2021-08-15

Experimental investigation of strut-cavity flameholder technology in liquid hydrocarbon fueled scramjet combustor

Science and Technology on Scramjet Lab.,The 31st Research Inst. of CASIC,Beijing 100074,China;Science and Technology on Scramjet Lab.,The 31st Research Inst. of CASIC,Beijing 100074,China;Science and Technology on Scramjet Lab.,The 31st Research Inst. of CASIC,Beijing 100074,China;Science and Technology on Scramjet Lab.,The 31st Research Inst. of CASIC,Beijing 100074,China;Science and Technology on Scramjet Lab.,The 31st Research Inst. of CASIC,Beijing 100074,China

Published:2021-08-15

摘要/Abstract

摘要： 液态碳氢燃料点火、稳焰技术是超燃冲压发动机的关键技术之一,是发动机获得推力性能的先决条件。采用直连试验手段,对支板凹槽组合稳焰技术进行了研究,比较了不同燃料喷注方式和不同支板凹槽组合方式对点火、稳定燃烧的影响。结果表明支板喷射与支板凹槽组合稳焰的燃烧组织方式,可以实现在低飞行马赫数范围(Ma0=4～5)液体碳氢燃料的可靠点火与稳定燃烧,并获得较好的燃烧性能。

关键词: 超燃冲压发动机;支板;凹槽;稳定燃烧

Abstract: The basic of scramjet propulsion,steady combustion is one of the key technologies in liquid hydrocarbon fueled scramjet.Experimental investigations on the flame stability were conducted using direct-connected test model combustor.Various fuel injection modes and strut-cavity flameholder schemes were investigated in the test.Results showed that the kerosene was ignited successfully and stable combustion was sustained at low flight Mach number(Ma0=4~5) conditions.

Key words: Scramjet;Strut;Cavity;Flame stability

冮强,周乐仪,覃正,马雪松,郭金鑫. 液体碳氢燃料超燃冲压发动机支板凹槽稳焰技术试验[J]. 推进技术, 2011, 32(5): 680-683.