| 喷管构形和聚焦位置对雾化水滴推进性能的影响 |
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| 引用本文： | 李修乾,洪延姬,文明,崔村燕,陈正. 喷管构形和聚焦位置对雾化水滴推进性能的影响[J]. 强激光与粒子束, 2011, 23(1): 6-10. DOI: 10.3788/HPLPB20112301.0006 |
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| 作者姓名： | 李修乾 洪延姬 文明 崔村燕 陈正 |
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| 作者单位： | 1. 北京大学 工学院， 湍流与复杂系统国家重点实验室， 北京 100871； 2. 装备指挥技术学院， 北京 101416 |
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| 基金项目： | 国家973项目，空间碎片专项科研项目 |
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| 摘 要： | 以抛物形和锥形喷管为研究对象,开展了雾化水滴的脉冲式TEA CO<,2>激光推进性能的实验研究.冲营的大小由压电传感器测量得出的推力随时间的变化关系曲线得出.雾化水滴的能量转化效率达到了26.1%,比冲达到了102 s.对于较短的喷管而言,聚焦位置距离喷管顶部越近,推进性能参数越高.喷管构形对推进性能的影响比较明显,抛...
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| 关 键 词： | 激光推进 雾化水滴 比冲 能量转化效率 |
| 收稿时间： | 1900-01-01; |
Effects of nozzle configuration and laser focusing site on propulsive performances of atomized water droplets |
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| Li Xiuqian,Hong Yanji,Wen Ming,Cui Cunyan,Chen Zheng. Effects of nozzle configuration and laser focusing site on propulsive performances of atomized water droplets[J]. High Power Laser and Particle Beams, 2011, 23(1): 6-10. DOI: 10.3788/HPLPB20112301.0006 |
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| Authors: | Li Xiuqian Hong Yanji Wen Ming Cui Cunyan Chen Zheng |
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| Affiliation: | 1. State Key Laboratory of Turbulence and Complex System, College of Engineering, Peking University, Beijing 100871, China; 2. The Academy of Equipment Command and Technology, P. O. Box 3380-86, Beijing 101416, China |
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| Abstract: | A TEA CO2 laser was employed to ablate atomized droplets for laser propulsion.Parabolic and conic nozzles were chosen for study.Total impulse was derived from the piezoelectric sensor data.Experimental results indicated that specific impulse and internal efficiency were increased to 102 s and 26.1% respectively.For short nozzles,propulsive characteristics increased as focusing site was moved nearer to the top of nozzles.Propulsive characteristics of parabolic nozzles were better than that of conical nozzles... |
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| Keywords: | laser propulsion atomized water droplets specific impulse internal efficiency |
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