National Taiwan Ocean University Institutional Repository:Item 987654321/49997
English  |  正體中文  |  简体中文  |  Items with full text/Total items : 26994/38795
Visitors : 2392842      Online Users : 58
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/49997

Title: Prediction of a temperature-dependent electroosmotically driven microchannel flow with the Joule heating effect
Authors: W. H. Sheu
S. H. Kuo
R. K. Lin
Contributors: 國立臺灣海洋大學:輪機工程學系
Date: 2012-06
Issue Date: 2018-09-07T01:20:03Z
Publisher: International Journal of Numerical Methods for Heat and Fluid Flow
Abstract: Abstract: Purpose ‐ A convection-diffusion-reaction scheme is proposed in this study to simulate the high gradient electroosmotic flow behavior in microchannels. The equations governing the total electric field include the Laplace equation for the effective electrical potential and the Poisson-Boltzmann equation for the electrical potential in the electric double layer. Design/methodology/approach ‐ Mixed electroosmotic/pressure-driven flow in a straight microchannel is studied with the emphasis on the Joule heat in the equations of motion. The nonlinear behaviors resulting from the hydrodynamic, thermal and electrical three-field coupling and the temperature-dependent fluid viscosity, thermal conductivity, electrical permittivity, and conductivity of the investigated buffer solution are analyzed. Findings ‐ The solutions computed from the employed flux discretization scheme for the hydrodynamic, thermal and electric field equations have been verified to have good agreement with the analytical solution. Parametric studies have been carried out by varying the electrical conductivity at the fixed zeta potential and varying the zeta potential at the fixed electrical conductivity. Originality/value ‐ Investigation is also addressed on the predicted velocity boundary layer and the electric double layer near the negatively charged channel wall.
Relation: 22(5)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/49997
Appears in Collections:[Department of Marine Engineering] Periodical Articles

Files in This Item:

File Description SizeFormat
index.html0KbHTML11View/Open


All items in NTOUR are protected by copyright, with all rights reserved.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback