| 离心力场流体热驱动液晶显现试验研究 |
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| 引用本文： | 毛军逵,常海萍,方立.离心力场流体热驱动液晶显现试验研究[J].工程热物理学报,2004,25(2):229-231. |
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| 作者姓名： | 毛军逵 常海萍 方立 |
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| 作者单位： | 南京航空航天大学能源与动力学院,江苏,南京,210016;南京航空航天大学能源与动力学院,江苏,南京,210016;南京航空航天大学能源与动力学院,江苏,南京,210016 |
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| 基金项目： | 国家自然科学基金资助项目(No.50276027)，国防基础科研资助项目(No.J1400D001) |
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| 摘 要： | 在强离心力场下构造出封闭微小循环通道,可以通过封闭通道特征尺寸的微小化来强化换热,同时利用流体的高热驱动力来克服尺寸微小化带来的阻力增加,不需要任何辅助动力装置,因此结构简单、强化换热效果佳。本文利用热色液晶技术,首次通过温度场显现试验,研究了离心力场下封闭微小通道内氟利昂R12的热驱动运动。结果表明同传统的热电偶测温相比,热色液晶技术作为一种新的测量方法,可以更准确地表示出整个温度场的分布规律。
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| 关 键 词： | 换热 热驱动 离心力场 液晶 |
| 文章编号： | 0353-231X(2004)02-0229-03 |
| 修稿时间： | 2003年12月6日 |
INVESTIGATION OF THERMALLY DRIVEN IN CENTRIFUGAL FIELD WITH LIQUID CRYSTAL |
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| MAO Jun-Kui CHANG Hai-Ping FANG Li.INVESTIGATION OF THERMALLY DRIVEN IN CENTRIFUGAL FIELD WITH LIQUID CRYSTAL[J].Journal of Engineering Thermophysics,2004,25(2):229-231. |
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| Authors: | MAO Jun-Kui CHANG Hai-Ping FANG Li |
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| Abstract: | Heat transfer coefficient can be enhanced greatly in micro-channels, but additional pump will be necessary to ensure the flow. Using the thermally driven in micro-channels placed in a high centrifugal field can increase the heat transfer rate without any pump. A experiment using liquid crystal method was carried out to investigate the thermally driven in centrifugal field and the distribution of temperature. The results show that liquid crystal method can get more information about the whole field and more accurate than the normal temperature measurement technique (thermocouple). |
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| Keywords: | heat transfer thermally driven liquid crystal centrifugal field |
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