| 一种超声速燃烧流动混合增强的新技术 |
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| 引用本文： | 陈坚强,张毅锋.一种超声速燃烧流动混合增强的新技术[J].实验流体力学,2004,18(4):7-10. |
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| 作者姓名： | 陈坚强 张毅锋 |
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| 作者单位： | 中国空气动力研究与发展中心,四川,绵阳,621000 |
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| 基金项目： | 国家自然科学基金资助项目(项目编号:90205036) |
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| 摘 要： | 从可压缩完全N S方程出发,采用NND差分格式和七组分八反应H2-Air化学燃烧模型,对脉冲式燃料喷射的二维凹槽超声速燃烧流动进行了数值模拟。在等流量喷射的条件下,对一种连续式和两种脉冲式燃料喷射流动做了分析比较,两种脉冲具有相同的频率和不同的持续时间,持续时间与周期的比例分别为RT=1/4和1/2。
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| 关 键 词： | 脉冲喷射 混合增强 数值模拟 |
| 文章编号： | 1007-3124(2004)04-0007-04 |
| 修稿时间： | 2003年11月18 |
A new technique of mixing augmentation for supersonic combustion flows |
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| CHEN Jian-qiang,ZHANG Yi-feng.A new technique of mixing augmentation for supersonic combustion flows[J].Experiments and Measur in Fluid Mechanics,2004,18(4):7-10. |
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| Authors: | CHEN Jian-qiang ZHANG Yi-feng |
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| Abstract: | In this study, two-dimensional supersonic cavity flows with impulsive jet are simulated applying the NND difference scheme, and an 8-step H_2-Air kinetics model with 7 reactants proposed by Moretti is adopted for this combustion flow simulation. To understand the performance of spasmodically combustion flows fueled, a continuous jet flow and two kind of impulse jet flows are studied contrastively. The two pulse jet flows have the same frequency, but different duration-to-period time ratio of R_T=1/4, 1/2 respectively. The influences of the three injections on combustion flows are compared and analyzed in detail. |
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| Keywords: | impulse jet mixing enhancement numerical simulation |
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