| 一次进水角度对水冲压发动机比冲性能影响研究 |
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| 引用本文： | 韩超,夏智勋,胡建新,赵宁.一次进水角度对水冲压发动机比冲性能影响研究[J].固体火箭技术,2009,32(5). |
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| 作者姓名： | 韩超 夏智勋 胡建新 赵宁 |
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| 作者单位： | 国防科技大学,航天与材料工程学院,长沙,410073 |
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| 摘 要： | 为了研究一次进水角度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流反应模型,对镁基水冲压发动机补燃室流场进行了数值模拟,获得了发动机喷管出口温度、出口压力、出口气流速度及发动机比冲随一次进水角度的增大先升高后降低的变化趋势,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,一次进水角度在40°左右时,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 一次进水 数值模拟 直连式试验 |
Effect of primary water penetration angle on specific impulse of water ramjet |
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| HAN Chao,XIA Zhi-xun,HU Jian-xin,ZHAO Ning.Effect of primary water penetration angle on specific impulse of water ramjet[J].Journal of Solid Rocket Technology,2009,32(5). |
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| Authors: | HAN Chao XIA Zhi-xun HU Jian-xin ZHAO Ning |
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| Institution: | HAN Chao,XIA Zhi-xun,HU Jian-xin,ZHAO Ning(College of Aerospace and Material 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 primary water penetration angle on engine performance of magnesium-based water ramjet with secondary water penetration.The change tendency of specific impulse,temperature,velocity and pressure of nozzle exit were obtained with primary water penetration.Direct-connected tests were carried out in order to validate the correctness of the numerical simulation.The result shows that as the primary water penetration angle ... |
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| Keywords: | water ramjet specific impulse primary water penetration numerical simulation direct-connected test |
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