| 双向进气结构脉管制冷机直流形成机理 |
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| 引用本文： | 蒋彦龙,陈国邦,余刚.双向进气结构脉管制冷机直流形成机理[J].南京航空航天大学学报,2006,38(2):166-169. |
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| 作者姓名： | 蒋彦龙 陈国邦 余刚 |
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| 作者单位： | 1. 南京航空航天大学航空宇航学院,南京,210016
2. 浙江大学机械与能源工程学院,杭州,310027 |
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| 基金项目： | 中国科学院资助项目;南京航空航天大学校科研和教改项目 |
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| 摘 要： | 在脉管制冷机中,由双向进气结构诱发的直流流动,不仅会增加冷端换热器的负载,降低制冷机性能,而且还是引起制冷温度不稳定的重要原因。如何有效地抑制直流流动已成为脉管制冷机能否大规模应用的关键。而对直流形成机理进行全面、深入的研究是发展简单、有效直流抑制手段的前提。针对该研究热点,本文开展了双向进气结构脉管制冷机直流形成机理研究,基于流体网络理论,考察工质物性对直流的影响和作用机理,进一步揭示了直流的形成本质。
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| 关 键 词： | 脉管制冷 直流流动 机理 流体网络 |
| 文章编号： | 1005-2615(2006)02-0166-04 |
| 收稿时间： | 2005-03-07 |
| 修稿时间： | 2005-05-18 |
Generation Mechanism of DC Flow in Double-Inlet Pulse Tube Coolers |
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| Jiang Yanlong,Chen Guobang,Yu Gang.Generation Mechanism of DC Flow in Double-Inlet Pulse Tube Coolers[J].Journal of Nanjing University of Aeronautics & Astronautics,2006,38(2):166-169. |
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| Authors: | Jiang Yanlong Chen Guobang Yu Gang |
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| Abstract: | The DC flow induced in the double-inlet of a pulse tube cooler deteriorates greatly the cooling capacity,and causes the cooler temperature instability.Whether the cooler could be widely used depends heavily on the simpler and more effective DC flow suppression ways to be developed.Therefore,a better understanding of its creation reason is very necessary.Based on this hot research point,investigation on the generation of the DC flow in double-inlet pulse tube coolers is undertaken.From the fluid network theory,the influence of thermo-property of the working fluid on the DC flow is theoretically studied to further reveal its creation mechanism. |
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| Keywords: | pulse tube cooler DC flow generation mechanism fluid network |
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