| 主喷管叶片中热壁面对分流管道流场特性的影响 |
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| 引用本文： | 靳冬欢,刘文广,华卫红,李兰,陈星,陆启生.主喷管叶片中热壁面对分流管道流场特性的影响[J].强激光与粒子束,2011,23(3). |
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| 作者姓名： | 靳冬欢 刘文广 华卫红 李兰 陈星 陆启生 |
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| 作者单位： | 国防科学技术大学 光电科学与工程学院， 长沙 410073 |
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| 摘 要： | 连续波化学激光器运转时，位于主喷管叶片内的副气流的分流管道壁面将被主喷管叶片加热而形成热壁面。通过3维的数值模拟，分析了单端、双端不同供气方式下，热壁面对分流管道流场特性的影响。热壁面将使总管气流总温沿着气流的流动方向逐渐升高，由此引起的支管入口总温的升高会降低支管的流量。无论是单端供气,还是双端供气，热壁面引起的管道流量波动幅度都要远大于绝热壁面的情况，最大波动幅度达2.16%。对进入总管的气流预热，适当增加供气总温，或将冷却管道与供气管道分开设计，气流总温变化引起的流量波动将会得到一定地抑制。
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| 关 键 词： | 化学激光器 分流管道 计算流体力学 热壁面 总管 支管 |
| 收稿时间： | 1900-01-01; |
Effects of hot wall on flow field characteristics of distribution flow pipeline in primary nozzle blade |
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| Jin Donghuan,Liu Wenguang,Hua Weihong,Li Lan,Chen Xing,Lu Qisheng.Effects of hot wall on flow field characteristics of distribution flow pipeline in primary nozzle blade[J].High Power Laser and Particle Beams,2011,23(3). |
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| Authors: | Jin Donghuan Liu Wenguang Hua Weihong Li Lan Chen Xing Lu Qisheng |
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| Affiliation: | College of Opto-Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | The wall of secondary gas flow distribution pipeline in primary nozzle blade will be heated during CW chemical laser operation.Effects on flow field characteristics of distribution flow pipeline with hot wall boundary under conditions of single end or double ends gas supply were analyzed based on three-dimension computational fluid dynamics methods.The hot wall boundary makes the total temperature of general pipeline higher and higher along the direction of main gas flow movement,and the total temperature o... |
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| Keywords: | chemical laser distribution flow pipeline computational fluid dynamics hot wall general pipeline branch pipeline |
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