| 水燃比对水冲压发动机性能影响数值模拟与试验研究 |
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| 引用本文： | 韩超,夏智勋,胡建新,赵宁,方丁酉.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. |
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| 作者姓名： | 韩超 夏智勋 胡建新 赵宁 方丁酉 |
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| 作者单位： | 国防科技大学,航天与材料工程学院,湖南,长沙,410073 |
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| 基金项目： | 国家自然科学基金资助项目 |
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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.
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| 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 |
| 收稿时间： | 2009/5/10 0:00:00 |
Numerical and Experiment Studies on Water Ramjet with Effect of Water-fuel Ratio |
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| HAN Chao,XIA Zhixun,HU Jianxin,ZHAO Ning and FANG Dingyou.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. |
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| Authors: | HAN Chao XIA Zhixun HU Jianxin ZHAO Ning and FANG Dingyou |
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| Institution: | College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China;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. |
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