Asymmetric heat transfer in liquid-liquid segmented flow in microchannels
File(s)
Accepted version
Author(s)
Che, Z
Wong, TN
Nguyen, NT
Yang, C
Type
Journal Article
Abstract
Heat transfer in segmented flow in microchannels can be significantly enhanced by recirculating vortices, due to the presence of interfaces. The processes of heat transfer in segmented flow subjecting to asymmetric boundary conditions are studied. Two types of boundary conditions are considered, asymmetric constant surface temperature and asymmetric constant surface heat flux. The paths of heat flow and the effects of the thermal conductivity, the plug length, and the Peclet number are studied. The results show different features from those at symmetric boundary conditions. The heat transfer process at asymmetric boundary conditions is controlled by both thermal advection and diffusion at the mid-plane of the channel. The coupling effects between the adjacent plugs complicate the process by the heat transfer across plug-plug interfaces. © 2014 Elsevier Ltd. All rights reserved.
Date Issued
2014-06-11
Date Acceptance
2014-05-05
Citation
International Journal of Heat and Mass Transfer, 2014, 77, pp.385-394
ISSN
0017-9310
Publisher
Elsevier
Start Page
385
End Page
394
Journal / Book Title
International Journal of Heat and Mass Transfer
Volume
77
Copyright Statement
© 2014, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Subjects
Segmented flow
Heat transfer
Thermal boundary layer
Multiphase microfluidics
Publication Status
Published