Chen, Q-L, Wu, K-J orcid.org/0000-0001-8658-5449 and He, C-H (2015) Investigation on liquid flow characteristics in microtubes. AIChE Journal, 61 (2). 2. pp. 718-735. ISSN 0001-1541
Abstract
The fundamental understanding and prediction of liquid flow characteristics in microscale are important to control the performance of microfluidic devices. However, fundamental questions about liquid flow characteristics in microscale have not been settled yet and systematical investigation is needed. A systematical investigation on liquid flow characteristics through microtubes with diameters varying from 44.5–1011 μm and relative roughness in the range 0.02–4.32% in the Reynolds number range 29–11,644 was performed in this work, using water as working fluid. Experimental results indicated that early transition occurred when the diameter was smaller than 1000 μm, the transitional flow characteristics for smooth microtubes differed from rough microtubes and the friction factor in turbulent region for rough microtubes was larger than conventional theory. Moreover, a parameter α was proposed to describe the characteristic of microtube. The characteristic parameter was used to calculate the critical Reynolds number and the friction factor in turbulent region for microscale.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2014 American Institute of Chemical Engineers. This is the peer reviewed version of the following article: Chen, Q-L, Wu, K-J and He, C-H (2015) Investigation on liquid flow characteristics in microtubes. AIChE Journal, 61 (2). 2. pp. 718-735. ISSN 0001-1541, which has been published in final form at https://doi.org/10.1002/aic.14656. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. |
Keywords: | microfluidic; microtube; liquid flow characteristics; critical Reynolds number; friction factor |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 21 Feb 2019 14:57 |
Last Modified: | 21 Feb 2019 14:57 |
Status: | Published |
Publisher: | Wiley |
Identification Number: | 10.1002/aic.14656 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:142502 |