实验流体力学2019，Vol.33Issue(1)：72-78,7.DOI:10.11729/syltlx20180027
氢燃料超燃燃烧室流场结构和火焰传播规律试验研究
Experimental study on flow structure and flame development in a hydrogen-fueled supersonic combustor
摘要
Abstract
The flow structure and flame development were studied experimentally in a hydrogenfueled scramjet combustor.Wall pressure measurement, schlieren, differential interferometry, highspeed framing of flame luminosity and OH-PLIF (planar laser-induced fluorescence) were introduced to characterize the combustion flow.The synchronous measurement path diagram of schlieren, differential interferometry and PLIF was developed in this study, and the coupling results of flow structure and flame were obtained.The results show that:in the five studied cases, the combustion flow structure is unstable when the equivalent ratio of hydrogen is greater than 0.17.The fragmentation flame spreads in the flow between the top and bottom wall.When the equivalent ratio of hydrogen is less than 0.17, the continuum flame is stable and located in the cavity shear layer.关键词
超燃冲压发动机/当量比/流场结构/振荡Key words
scramjet combustor/equivalent ratio/flow structure/oscillation分类
航空航天引用本文复制引用
田野,乐嘉陵,杨顺华,钟富宇..氢燃料超燃燃烧室流场结构和火焰传播规律试验研究[J].实验流体力学,2019,33(1):72-78,7.基金项目
国家自然科学基金项目(51706237) （51706237）
