| 引用本文: | 韩超,夏智勋,胡建新,等.水燃比对水冲压发动机性能影响数值模拟与试验研究.[J].国防科技大学学报,2009,31(4):117-121.[点击复制] |
| HAN Chao,XIA Zhixun,HU Jianxin,et al.Numerical and Experiment Studies on Water Ramjet with Effect of Water-fuel Ratio[J].Journal of National University of Defense Technology,2009,31(4):117-121[点击复制] |
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| 水燃比对水冲压发动机性能影响数值模拟与试验研究 |
| 韩超, 夏智勋, 胡建新, 赵宁, 方丁酉 |
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(国防科技大学 航天与材料工程学院，湖南 长沙 410073)
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| 摘要: |
| 为了研究水燃比对二次进水水冲压发动机比冲性能的影响规律，建立了发动机补燃室两相反应模型，对镁基水冲压发动机进行了数值模拟，获得了发动机比冲、喷管出口温度及出口速度随水燃比变化趋势，在此基础上进行了水冲压发动机地面直连式试验研究。结果表明，存在最佳水燃比使二次进水水冲压发动机比冲性能较优。 |
| 关键词: 水冲压发动机 比冲性能 水燃比 数值模拟 直连式试验 |
| DOI： |
| 投稿日期：2009-05-10 |
| 基金项目:国家自然科学基金资助项目(50376071) |
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| Numerical and Experiment Studies on Water Ramjet with Effect of Water-fuel Ratio |
| HAN Chao, XIA Zhixun, HU Jianxin, ZHAO Ning, FANG Dingyou |
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(College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| A two-phase reaction model of the secondary combustor was established to study the effect of water-fuel ratio on engine performance of magnesium-based water ramjet with twice water penetration. The change tendency of specific impulse, temperature and velocity of nozzle exit were obtained with water-fuel ratio. Direct-connected tests were carried out in order to validate the correctness of the numerical simulation. The result shows that there exists the optimum water-fuel ratio, which can improve the performance of water ramjet. |
| Keywords: water ramjet specific impulse water-fuel ratio numerical simulation direct-connected test |
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