| 引用本文: | 袁磊,沈赤兵.数值模拟气/气喷嘴速度比对燃烧性能的影响.[J].国防科技大学学报,2014,36(5):66-69.[点击复制] |
| YUAN Lei,SHEN Chibing.Numerical simulation on effect of velocity ratio on gas/gas injector combustion performance[J].Journal of National University of Defense Technology,2014,36(5):66-69[点击复制] |
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| 数值模拟气/气喷嘴速度比对燃烧性能的影响 |
| 袁磊, 沈赤兵 |
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(国防科技大学 高超声速冲压发动机技术重点试验室， 湖南 长沙 410073)
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| 摘要: |
| 为研究应用于全流量补燃循环发动机的不同气/气喷嘴得到的燃烧流场，通过求解Navier-Stokes方程组，对不同燃料与氧化剂速度比下的流动燃烧过程进行了数值计算，计算结果与实验结果吻合。仿真结果表明：增加速度比能使燃烧火焰面提前，燃烧效率变大。如果发动机的长度受到限制，可以适当增加速度比以实现高效燃烧。 |
| 关键词: 速度比 气/气喷嘴 燃烧流场 数值模拟 |
| DOI：10.11887/j.cn.201405011 |
| 投稿日期：2013-01-18 |
| 基金项目: |
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| Numerical simulation on effect of velocity ratio on gas/gas injector combustion performance |
| YUAN Lei, SHEN Chibing |
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(Science and Technology on Scramjet Laboratory, National University of Defense Technology, Changsha 410073, China)
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| Abstract: |
| In order to investigate the combustion flow field of gas/gas injector in full-flow staged combustion cycle engine, the flowing combustion processes of different velocity ratios between fuels and oxidants were numerically simulated by solving the Navier-Stokes equations. Simulation results which agree well with the experimental results show that: the combustion efficiency increases and the combustion flame surface advances along with the increase of velocity ratio; if the length of the engine is restricted, the effective combustion can be achieved by increasing the velocity ratio appropriately. |
| Keywords: velocity ratio gas/gas injector combustion flow field numerical simulation |
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