Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/83355
Title: | Dynamic Electroosmotic Flows of Power-Law Fluids in Rectangular Microchannels | Authors: | Zhao, Cunlu Zhang, Wenyao Yang, Chun |
Keywords: | flow enhancement microfluidics |
Issue Date: | 2017 | Source: | Zhao, C., Zhang, W., & Yang, C. (2017). Dynamic Electroosmotic Flows of Power-Law Fluids in Rectangular Microchannels. Micromachines, 8(2), 34-. | Series/Report no.: | Micromachines | Abstract: | Dynamic characteristics of electroosmosis of a typical non-Newtonian liquid in a rectangular microchannel are investigated by using numerical simulations. The non-Newtonian behavior of liquids is assumed to obey the famous power-law model and then the mathematical model is solved numerically by using the finite element method. The results indicate that the non-Newtonian effect produces some noticeable dynamic responses in electroosmotic flow. Under a direct current (DC) driving electric field, it is found that the fluid responds more inertly to an external electric field and the steady-state velocity profile becomes more plug-like as the flow behavior index decreases. Under an alternating current (AC) driving electric field, the fluid is observed to experience more significant acceleration and the amplitude of oscillating velocity becomes larger as the fluid behavior index decreases. Furthermore, our investigation also shows that electroosmotic flow of power-law fluids under an AC/DC combined driving field is enhanced as compared with that under a pure DC electric field. These dynamic predictions are of practical use for the design of electroosmotically-driven microfluidic devices that analyze and process non-Newtonian fluids such as biofluids and polymeric solutions. | URI: | https://hdl.handle.net/10356/83355 http://hdl.handle.net/10220/42563 |
ISSN: | 2072-666X | DOI: | 10.3390/mi8020034 | Schools: | School of Mechanical and Aerospace Engineering | Rights: | © 2017 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | MAE Journal Articles |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Dynamic Electroosmotic Flows of Power-Law Fluids.pdf | 2.17 MB | Adobe PDF | View/Open |
SCOPUSTM
Citations
20
23
Updated on Mar 7, 2024
Web of ScienceTM
Citations
10
28
Updated on Oct 25, 2023
Page view(s) 50
469
Updated on Mar 28, 2024
Download(s) 50
136
Updated on Mar 28, 2024
Google ScholarTM
Check
Altmetric
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.