| 取压方式对微通道内单相摩擦阻力特性的影响 |
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| 引用本文： | 李卓,俞坚,马重芳.取压方式对微通道内单相摩擦阻力特性的影响[J].工程热物理学报,2006,27(6):1008-1010. |
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| 作者姓名： | 李卓 俞坚 马重芳 |
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| 作者单位： | 传热强化与过程节能教育部重点实验室及传热与能源利用北京市重点实验室,北京工业大学,北京,100022 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 本文以去离子水和氮气为工质,在水平圆形微通道(dh=0．336 mm)中采用两种直接取压方式-缝隙取压和小孔取压,对单相摩擦阻力特性进行了实验研究,并通过改变缝隙宽度,研究缝隙宽度对压降测量偏差的影响．
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| 关 键 词： | 微通道 取压方式 摩擦阻力 缝隙取压 |
| 文章编号： | 0253-231X(2006)06-1008-03 |
| 修稿时间： | 2006年3月30日 |
THE EFFECT OF PRESSURE MEASUREMENT METHODS ON SINGLE-PHASE FRICTIONAL PRESSURE DROP IN MICROCHANNELS |
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| LI Zhuo,YU Jian,MA Chong-Fang.THE EFFECT OF PRESSURE MEASUREMENT METHODS ON SINGLE-PHASE FRICTIONAL PRESSURE DROP IN MICROCHANNELS[J].Journal of Engineering Thermophysics,2006,27(6):1008-1010. |
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| Authors: | LI Zhuo YU Jian MA Chong-Fang |
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| Abstract: | Single-phase frictional pressure drop in microchannels were experimentally investigated, using nitrogen and water. The experiments of single-phase flow through straight tube (dh=0.336 mm) were performed using two different pressure measurement methods - pressure measurements through a hole and a gap. At the same time, through changing the width of gap, the effect of different gap widths on the pressure measurement was researched. |
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| Keywords: | microchannels pressure measurement methods frictional pressure drop pressure measurement through a gap |
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