| H2O污染对超燃冲压发动机燃烧室性能影响的三维数值模拟 |
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| 引用本文： | 邢建文,杨样.H2O污染对超燃冲压发动机燃烧室性能影响的三维数值模拟[J].推进技术,2011,32(1):5-10. |
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| 作者姓名： | 邢建文 杨样 |
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| 作者单位： | 1. 南京航空航天大学能源与动力学院,江苏,南京,210016;中国空气动力研究与发展中心,四川,绵阳,621000
2. 中国空气动力研究与发展中心,四川,绵阳,621000 |
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| 摘 要： | 为了解来流污染对超燃冲压发动机性能的影响,需要大量的实验和CFD模拟。基于纯净空气和污染空气(H2O)来流下燃烧对比实验,采用较为详细的化学反应动力学模型(13组分33方程),对三个试验条件的燃烧室反应流场进行了三维大规模并行CFD模拟。模拟结果与对比试验测得的壁面压强比较接近,能"分辨"试验气体中H2O的污染影响。模拟结果显示,从燃烧室整体性能看,7.4%H2O和18.3%H2O污染导致燃烧室单位流量的空气对应推力分别下降4.1%和10.7%,而燃烧室燃烧效率分别下降5.5%和9.5%。
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| 关 键 词： | 超燃冲压发动机 污染效应 并行计算 化学反应动力学模型 |
| 收稿时间： | 2009/11/5 0:00:00 |
| 修稿时间： | 2010/9/26 0:00:00 |
Three-dimensional simulation of H2O vitiation effects on combustor performance for scramjet |
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| XING Jian-wen and YANG Yang.Three-dimensional simulation of H2O vitiation effects on combustor performance for scramjet[J].Journal of Propulsion Technology,2011,32(1):5-10. |
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| Authors: | XING Jian-wen and YANG Yang |
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| Institution: | XING Jian-wen1,2,YANG Yang2(1.Coll.of Energy and Power,Nanjing Univ.of Aeronautics and Astronautics,Nanjing 210016,China,2.China Aerodynamics Research and Development Center,Mianyang 621000,China) |
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| Abstract: | Understanding the complicated issues with regard to the effects of airstream vitiation on scramjet test performance requires a lot of efforts involving experiment,modeling and CFD simulation.Based on comparative experiments for combustion in clean air and air vitiated with H2O,massively parallel CFD simulations of reacting flowfield in the combustor for three cases corresponding to experimental conditions were conducted with a relatively detailed chemical kinetic model involving 13 species and 33 reactions.... |
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| Keywords: | Scramjet Vitiation effect Parallel computation Chemical kinetic model |
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