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首页> 外文期刊>Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics >Spark-enhanced ignition and flame stabilization in an ethylene-fueled scramjet combustor with a rear-wall-expansion geometry
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Spark-enhanced ignition and flame stabilization in an ethylene-fueled scramjet combustor with a rear-wall-expansion geometry

机译:用后壁 - 膨胀几何形状的乙烯燃料炒菜燃烧器中的火花增强点火和火焰稳定

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Highlights?Ethylene flame was investigated experimentally in a scramjet combustor.?Ignition processes were optimized.?Combustion enhancement assisted by spark plasma was emphasized.?OH?, CH?spontaneous emissions and flame luminosity were recorded.AbstractSpark ignition processes in an ethylene-fueled scramjet combustor with a rear-wall-expansion geometry were investigated experimentally at the inflow condition of Ma?=?2.92 with a stagnation pressure 2.6?MPa and a stagnation temperature 1530?K. Optical measurements including OH?, CH?spontaneous emission and high-speed photography of flame luminosity, were carried out to characterize the ignition and stabilization processes of the flame. Static pressure measurements were also conducted to provide quantitative information of wall-pressure distributions of t
机译:<![cdata [ 亮点 在Scramjet燃烧器中实验研究了乙烯火焰。 点火过程被优化。 燃烧强调由火花等离子体辅助的增强。 OH ,ch 自发排放和火焰亮度是录制。 抽象 < CE:简单-CARA ID =“SP0010”查看=“全部”>在MA的流入条件下通过实验研究了具有后壁 - 膨胀几何形状的乙烯燃料炒法燃烧器中的SPARK点火过程,并进行停滞压力2.6?mpa和停滞温度1530?k。包括OH ,CH 火焰亮度的自发发射和高速摄影,进行了表征火焰的点火和稳定过程。还进行了静压测量以提供T的壁压分布的定量信息

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