Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/79417
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Type: | Journal article |
Title: | A pressure drop correlation for low Reynolds number Newtonian flows through a rectangular orifice in a similarly shaped micro-channel |
Author: | Zivkovic, V. Zerna, P. Alwahabi, Z. Biggs, M. |
Citation: | Chemical Engineering Research and Design, 2013; 91(1):1-6 |
Publisher: | Inst Chemical Engineers |
Issue Date: | 2013 |
ISSN: | 0263-8762 1744-3563 |
Statement of Responsibility: | V. Zivkovic, P. Zerna, Z.T. Alwahabi, M.J. Biggs |
Abstract: | Current microfabrication methods mean that rectangular orifices in similarly shaped micro-channels are often found in microfluidic devices. The power required to overcome the pressure drop across such orifices is often of importance. In the contribution reported here, numerical results for low Reynolds number incompressible Newtonian fluid flow through rectangular orifice in similarly shaped micro-channel have been used to develop a correlation for pressure drop arising from the orifice. The correlation, which was motivated by theoretical developments, indicates that the pressure drop is proportional to the average velocity through the orifice, and a function of the orifice contraction ratio, length-to-width ratio and, most particularly, aspect ratio. |
Keywords: | Microfluidics Pressure drop Micro-channel Micro-orifice Couette Coefficient |
Rights: | © 2012 The Institution of Chemical Engineers. |
DOI: | 10.1016/j.cherd.2012.05.022 |
Published version: | http://dx.doi.org/10.1016/j.cherd.2012.05.022 |
Appears in Collections: | Aurora harvest 4 Chemical Engineering publications Environment Institute publications |
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File | Description | Size | Format | |
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hdl_79417.pdf | Accepted version | 378.93 kB | Adobe PDF | View/Open |
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