| 金属粉末燃烧装置凝相产物反弹特性实验研究 |
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| 引用本文： | 王志琴,胡春波,李孟哲,胡加明.金属粉末燃烧装置凝相产物反弹特性实验研究[J].推进技术,2021,42(11):2538-2545. |
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| 作者姓名： | 王志琴 胡春波 李孟哲 胡加明 |
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| 作者单位： | 西北工业大学,西北工业大学,西北工业大学,西北工业大学 |
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| 基金项目： | 国家自然科学基金；中央高校基本科研业务费专项资金 |
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| 摘 要： | 为获得金属粉末燃烧装置燃烧产物的反弹特性，进而为金属凝相燃烧产物收集装置的设计提供指导，在收集并分析了铁粉燃烧产物特性的基础上，搭建了壁面碰撞反弹装置，开展了凝相燃烧产物与石墨板反弹特性实验研究，获得了铁粉燃烧产物与石墨板碰撞反弹后的法向反弹系数（en）与切向反弹系数（et）随粒子入射速度、入射角度的影响规律，并拟合了反弹系数多项式。结果表明：真实燃烧产物实验条件下，铁粉凝相燃烧产物的入射速度对en和et影响不显著，但入射角度对en和et的影响较大，表现为en随入射角度的增加而增大，et随入射角度的增加先减后增，但增幅较小，当入射角度大于58°时，et又出现减小的趋势。
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| 关 键 词： | 金属粉末燃烧装置 铁粉燃烧产物 反弹系数 石墨板 实验研究 |
| 收稿时间： | 2020/2/29 0:00:00 |
| 修稿时间： | 2021/9/22 0:00:00 |
Experimental Study on Rebound Characteristics of Condensed Products in Metal Powder Combustion Device |
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| WANG Zhi-qin,HU Chun-bo,LI Meng-zhe,HU Jia-ming.Experimental Study on Rebound Characteristics of Condensed Products in Metal Powder Combustion Device[J].Journal of Propulsion Technology,2021,42(11):2538-2545. |
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| Authors: | WANG Zhi-qin HU Chun-bo LI Meng-zhe HU Jia-ming |
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| Abstract: | In order to study the rebound characteristic of combustion products in metal powder combustion device, and provide guidance for the design of metal condensed combustion product collection device, on the basis of collecting and analyzing the characteristics of combustion products of iron powder , a wall impact rebound device was built. The rebound characteristics experiment of condensed combustion products and graphite plates was carried out. The effects of incident velocity and incident angle on the normal rebound coefficient(en) and the tangential rebound coefficient(et) were obtained. Meanwhile, fitting the rebound coefficient polynomial. The experimental results show that under the realistic combustor conditions in this paper, the incident velocity has no significient influence on en and et, while incident angle has significient influence on the rebound coefficients. With the increase of incident angle, en increases, et decreases initially and increases afterwards. However, the added value of et is small, and et decreases again when the incident angle is greater than 58°. |
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| Keywords: | Metal Powder Combustion Device Iron Powder Combustion Product Rebound Coefficient Polynomial Graphite Plate |
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