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Numerical and experimental study on shear coaxial injectors with hot hydrogen-rich gas/oxygen-rich gas and GH2/GO2

机译:含热富氢气体/富氧气体和GH2 / GO2的剪切同轴喷射器的数值和实验研究

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摘要

The influences of the shear coaxial injector parameters on the combustion performance and the heat load of a combustor are studied numerically and experimentally.The injector parameters,including the ratio of the oxidizer pressure drop to the combustor pressure (Dp),the velocity ratio of fuel to oxidizer (Rv),the thickness (Wo),and the recess (Ho) of the oxidizer injector post tip,the temperature of the hydrogen-rich gas (TH) and the oxygen-rich gas (To),are integrated by the orthogonal experimental design method to investigate the performance of the shear coaxial injector.The gaseous hydrogen/oxygen at ambient temperature (GH2/GO2),and the hot hydrogen-rich gas/oxygen-rich gas are used here.The length of the combustion (Lc),the average temperatures of the combustor wall (Tw),and the faceplate (TF) are selected as the indicators.The tendencies of the influences of injector parameters on the combustion performance and the heat load of the combustor for the GH2/GO2 case are similar to those in the hot propellants case.However,the combustion performancein the hot propellant case is better than that in the GH2/GO2 case,and the heat load of the combustor is also larger than that in the latter case.
机译:数值和实验研究了剪切同轴喷油器参数对燃烧器燃烧性能和热负荷的影响。喷油器参数包括氧化剂的压降与燃烧器压力的比(Dp),燃料的速度比。到氧化剂(Rv),厚度(Wo)和氧化剂喷射器针尖的凹槽(Ho),富氢气体(TH)和富氧气体(To)的温度通过正交试验设计方法研究了剪切同轴喷射器的性能。这里使用环境温度下的气态氢/氧气(GH2 / GO2)和热的富氢气体/富氧气体。 Lc),燃烧室壁的平均温度(Tw)和面板(TF)作为指标.GH2 / GO2的喷射器参数对燃烧性能和燃烧器热负荷的影响趋势情况类似于但是,在热推进剂情况下的燃烧性能要好于GH2 / GO2情况,燃烧室的热负荷也比在后者情况下大。

著录项

  • 来源
    《中国物理:英文版》 |2013年第4期|312-323|共12页
  • 作者

    Jin Ping; Li Mao; Cai Guo-Biao;

  • 作者单位

    Beijing University of Aeronautics and Astronautics, Beijing 100191, China;

  • 收录信息 中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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