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Combustion of hydrocarbon fuels in scramjet engines: ethylene combustion

机译：汽油燃料燃料燃料燃烧发动机：乙烯燃烧

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Mixing and combustion characteristics of ethylene in scramjet engines are investigated numerically. The configuration studied features the existence of a generic rearward-facing step in the upper longitudinal wall. The effect of pilot injection on the combustion of ethylene fuel injected normal to the incoming supersonic air stream is investigated. The results for ethylene supersonic combustion show the typical features of such flowfields. The existence of a wedge downstream of the rearward-facing step shows a good potential towards enhancing the fuel-air mixing in addition to helping in initiating and stabilizing the main flame. The 3-D version of Fluent CFD code is used in the present study. The results show typical features of such flow field. The current work is still underway to complete studying the combustion flowfield of ethylene, propane and kerosene injection with pilot hydrogen as a comprehensive study to address the possibility of using hydrocarbon fuels in the mid-speed range of the hypersonic flight.
机译：在数值上研究了血管引擎中乙烯的混合和燃烧特性。所研究的配置特征在上纵壁中的存在于上部纵向壁的存在。研究了先导喷射对向入境空气流的乙烯燃料燃烧的影响。乙烯超声燃烧的结果显示了这种流场的典型特征。在后面的步骤的下游存在的楔形表明，除了有助于启动和稳定主火焰之外，均致燃料空气混合的良好潜力。本研究中使用Fluent CFD代码的3-D版本。结果显示了这种流场的典型特征。目前的作品仍然正在进行研究乙烯，丙烷和煤油注射液的燃烧流域，以试验氢作为综合研究，以解决在超音速飞行中使用碳氢化合物燃料的可能性。

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