| 可调冲压喷管变流量固冲发动机工作特性分析 |
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| 引用本文： | 张林,李进贤,唐金兰,冯喜平.可调冲压喷管变流量固冲发动机工作特性分析[J].世界科技研究与发展,2009,31(4):678-681. |
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| 作者姓名： | 张林 李进贤 唐金兰 冯喜平 |
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| 作者单位： | 西北工业大学航天学院,西安,710072 |
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| 摘 要： | 不可调固冲发动机在飞行中常处于非设计工作点，为改善该类发动机工作性能，目前多采用燃气流量调节的方法。若同时调节冲压喷管，则可大幅改善固冲发动机的适应性。本文基于一维气动理论，建立了可调冲压喷管变流量固冲发动机的数学模型，计算得到了其工作特性。分析表明：与不可调固；中发动机、燃气流量可调固冲发动机相比，可调冲压喷管变流量固冲发动机具有工作域大、阻力低、溢流少、进气道总压损失少以及比冲高等优势。
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| 关 键 词： | 固体火箭冲压发动机 变流量 可调冲压喷管 工作特性 |
Analysis of Flux.adjustable and Ramjet-nozzle-adjustable Solid Ducted Rocket |
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| ZHANG Lin,LI Jinxian,TANG Jinlan,FENG Xiping.Analysis of Flux.adjustable and Ramjet-nozzle-adjustable Solid Ducted Rocket[J].World Sci-tech R & D,2009,31(4):678-681. |
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| Authors: | ZHANG Lin LI Jinxian TANG Jinlan FENG Xiping |
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| Institution: | ( College of Astronautics, Northwestern Polytechnical University, Xi＇ an 710072 ) |
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| Abstract: | Unadjustable solid ducted rocket is unable to operate at the design point all the time,in order to improve the performance of this kind of motor,flux-adjustment is adopted currently. Adaptability would be improved if ramjet nozzle is adjusted at the same time. Based on one-dimension aerodynamics,the math model of flux-adjustable and ramjet - nozzle - adjustable solid ducted rocket was built, and its performance was obtained by simulation. Analysis shows that compared to unadjustable solid dueted rocket and flux-adjustable solid ducted rocket, the flux-adjustable and ramjet-nozzle-adjustable solid ducted rocket owns the advantages of broad operation range, small resistance, effluence and total pressure loss of inlet duct and high specific impulse. |
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| Keywords: | solid ducted rocket flux-adjustment ramjet-nozzle-adjustment performance |
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