Modeling study on axial wetting length of meniscus in vertical rectangular microgrooves
文献类型：期刊论文
| 作者 | Nie, Xuelei; Hu, Xuegong; Tang, Dawei |
| 刊名 | APPLIED THERMAL ENGINEERING
 |
| 出版日期 | 2013-04-15 |
| 卷号 | 52期号:2页码:615-622 |
| 关键词 | Micro-PIV Microgrooves Meniscus Wetting length Modeling |
| 英文摘要 | In this work, the traditional model for predicting axial wetting length of meniscus in vertical microgrooves is introduced firstly. The traditional model may cause inaccurate results in predicting wetting length in vertical microgrooves because of the assumption of round meniscus in cross sections of microgrooves and the way of calculating curvature. In order to develop this model and make it more accurate, a revised micro-PIV system is built to test the meniscus shapes in cross sections of vertical and horizontal microgrooves, and the experimental results prove that the real shapes of meniscus are parabolic other than round. The fitting formulas of meniscus shapes are obtained with software Origin 7.5. Based on experimental results and fitting formulas, the traditional model is revised by changing the way to calculate curvature. In the modified model, the curvature for calculating axial wetting length of meniscus equals average curvature of meniscus in cross section of vertical microgrooves minus the average curvature of meniscus in cross section of horizontal microgrooves. It is proved that the modified model can predict the wetting length in vertical microgrooves better than the original model. The average difference between experiment and modified model is 2.5% while that between experiment and traditional model is 174.2%. The disadvantage of the modified model is that using the new model to predict wetting length needs to know the real shapes of meniscus in vertical and horizontal microgrooves. (C) 2012 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics |
| 研究领域[WOS] | Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics |
| 关键词[WOS] | HEAT-TRANSFER ; IMAGE VELOCIMETRY ; COOLING SYSTEM ; FLOW ; MICROCHANNELS ; EVAPORATOR ; TRANSPORT |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000316586100038 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/98837]  |
| 专题 | 工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI） |
| 作者单位 | Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Nie, Xuelei,Hu, Xuegong,Tang, Dawei. Modeling study on axial wetting length of meniscus in vertical rectangular microgrooves[J]. APPLIED THERMAL ENGINEERING,2013,52(2):615-622. |
| APA | Nie, Xuelei,Hu, Xuegong,&Tang, Dawei.(2013).Modeling study on axial wetting length of meniscus in vertical rectangular microgrooves.APPLIED THERMAL ENGINEERING,52(2),615-622. |
| MLA | Nie, Xuelei,et al."Modeling study on axial wetting length of meniscus in vertical rectangular microgrooves".APPLIED THERMAL ENGINEERING 52.2(2013):615-622. |
入库方式： OAI收割
来源：工程热物理研究所
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