Abstract
Microchannels have many applications in the field of modern technologies. Today, it is necessary to increase the efficiency of these systems due to the increasing rate of thermal loads. Recent researches have shown that liquid flows in the microchannels depend on their size and surface properties. Consequently, there is no symmetric flow condition in a symmetric geometric channel necessarily. In this study, the effect of slip length on the amount of asymmetric heat transfer in a microchannel is investigated numerically. By calculating the parameters such as Nusselt number and local pressure drop coefficient, it is observed that the asymmetric slip flow affects the flow profile and could lead to a decrease or increase in the heat transfer in the microchannel. According to the results, asymmetric slip flow can lead to a 20–40% reduction or increase in the Nusselt number. The most important point in the design of micro-scale asymmetric cooling systems is the increase of slip length at high temperatures.
Issue Section:
Research Papers
References
1.
Usefian
, A.
, Bayareh
, M.
, Shateri
, A.
, and Taheri
, N.
, 2019
, “Numerical Study of Electro-Osmotic Micro-Mixing of Newtonian and Non-Newtonian Fluids
,” J. Braz. Soc. Mech. Sci. Eng.
, 41
(5
), p. 238
. 10.1007/s40430-019-1739-22.
Usefian
, A.
, and Bayareh
, M.
, 2019
, “Numerical and Experimental Study on Mixing Performance of a Novel Electro-Osmotic Micro-Mixer
,” Meccanica
, 54
(8
), pp. 1149
–1162
. 10.1007/s11012-019-01018-y3.
Usefian
, A.
, Bayareh
, M.
, and Ahmadi Nadooshan
, A.
, 2019
, “Rapid Mixing of Newtonian and Non-Newtonian Fluids in a Three-Dimensional Micro-Mixer Using Non-Uniform Magnetic Field
,” J. Heat Mass Transf. Res.
, 6
(1
), pp. 55
–61
.4.
Hendy
, S. C.
, Jasperse
, M.
, and Burnell
, J.
, 2005
, “Effect of Patterned Slip on Micro- and Nanofluidic Flows
,” Phys. Rev. E
, 72
(1
), p. 016303
. 10.1103/PhysRevE.72.0163035.
Hendy
, S. C.
, and Lund
, N. J.
, 2007
, “Effective Slip Boundary Conditions for Flows Over Nanoscale Chemical Heterogeneities
,” Phys. Rev. E
, 76
(6
), p. 066313
. 10.1103/PhysRevE.76.0663136.
Qi
, H.
, Liang
, A.
, Jiang
, H.
, Chong
, X.
, and Wang
, Y.
, 2018
, “Effect of Pipe Surface Wettability on Flow Slip Property
,” Ind. Eng. Chem. Res.
, 57
(37
), pp. 12543
–12550
. 10.1021/acs.iecr.8b027597.
Chun
, M.-S.
, and Lee
, S.
, 2005
, “Flow Imaging of Dilute Colloidal Suspension in PDMS-Based Microfluidic Chip Using Fluorescence Microscopy
,” Colloids Surf. A
, 267
(1–3
), pp. 86
–94
. 10.1016/j.colsurfa.2005.06.0468.
Byun
, D.
, Kim
, J.
, Ko
, H. S.
, and Park
, H. C.
, 2008
, “Direct Measurement of Slip Flows in Superhydrophobic Microchannels With Transverse Grooves
,” Phys. Fluids
, 20
(11
), p. 113601
. 10.1063/1.30266099.
Tretheway
, D. C.
, and Meinhart
, C. D.
, 2004
, “A Generating Mechanism for Apparent Fluid Slip in Hydrophobic Microchannels
,” Phys. Fluids
, 16
(5
), pp. 1509
–1515
. 10.1063/1.166940010.
Rosengarten
, G.
, Cooper-White
, J.
, and Metcalfe
, G.
, 2006
, “Experimental and Analytical Study of the Effect of Contact Angle on Liquid Convective Heat Transfer in Microchannels
,” Int. J. Heat Mass Transfer
, 49
(21–22
), pp. 4161
–4170
. 10.1016/j.ijheatmasstransfer.2006.02.05711.
Ngoma
, G. D.
, and Erchiqui
, F.
, 2007
, “Heat Flux and Slip Effects on Liquid Flow in a Microchannel
,” Int. J. Therm. Sci.
, 46
(11
), pp. 1076
–1083
. 10.1016/j.ijthermalsci.2007.02.00112.
Morini
, G. L.
, 2005
, “Viscous Heating in Liquid Flows in Micro-Channels
,” Int. J. Heat Mass Transfer
, 48
(17
), pp. 3637
–3647
. 10.1016/j.ijheatmasstransfer.2005.01.01113.
Shojaeian
, M.
, and Shojaee
, M. N.
, 2013
, “Viscous Dissipation Effect on Heat Transfer Characteristics of Mixed Electromagnetic/Pressure Driven Liquid Flows Inside Micropumps
,” Korean J. Chem. Eng.
, 30
(4
), pp. 823
–830
. 10.1007/s11814-012-0233-914.
Shojaeian
, M.
, and Koşar
, A.
, 2014
, “Convective Heat Transfer and Entropy Generation Analysis on Newtonian and Non-Newtonian Fluid Flows Between Parallel-Plates Under Slip Boundary Conditions
,” Int. J. Heat Mass Transfer
, 70
, pp. 664
–673
. 10.1016/j.ijheatmasstransfer.2013.11.02015.
Shojaeian
, M.
, Nedaei
, M.
, Yildiz
, M.
, and Koşar
, A.
, 2017
, “Numerical Heat Transfer and Entropy Analysis on Liquid Slip Flows Through Parallel-Plate Microchannels
,” ASME J. Therm. Sci. Eng. Appl.
, 10
(2
), p. 021003
. 10.1115/1.403719916.
Kandlikar
, S. G.
, Colin
, S.
, Peles
, Y.
, Pease
, R. F.
, Brandner
, J. J.
, and Tuckerman
, D. B.
, 2013
, “Heat Transfer in Microchannels—2012 Status and Research Needs
,” ASME J. Heat Transfer
, 135
(9
), p. 091001
. 10.1115/1.402435417.
Zhang
, T.
, Jia
, L.
, Yang
, L.
, and Jaluria
, Y.
, 2010
, “Effect of Viscous Heating on Heat Transfer Performance in Microchannel Slip Flow Region
,” Int. J. Heat Mass Transfer
, 53
(21–22
), pp. 4927
–4934
. 10.1016/j.ijheatmasstransfer.2010.05.05518.
Nikkhah
, Z.
, Karimipour
, A.
, Safaei
, M. R.
, Forghani-Tehrani
, P.
, Goodarzi
, M.
, Dahari
, M.
, and Wongwises
, S.
, 2015
, “Forced Convective Heat Transfer of Water/Functionalized Multi-Walled Carbon Nanotube Nanofluids in a Microchannel With Oscillating Heat Flux and Slip Boundary Condition
,” Int. Commun. Heat Mass Transfer
, 68
, pp. 69
–77
. 10.1016/j.icheatmasstransfer.2015.08.00819.
Afrand
, M.
, Karimipour
, A.
, Ahmadi Nadooshan
, A.
, and Akbari
, M.
, 2016
, “The Variations of Heat Transfer and Slip Velocity of FMWNT-Water Nano-Fluid Along the Micro-Channel in the Lack and Presence of a Magnetic Field
,” Physica E
, 84
, pp. 474
–481
. 10.1016/j.physe.2016.07.01320.
Karimipour
, A.
, Hossein Nezhad
, A.
, D’Orazio
, A.
, and Shirani
, E.
, 2012
, “Investigation of the Gravity Effects on the Mixed Convection Heat Transfer in a Microchannel Using Lattice Boltzmann Method
,” Int. J. Therm. Sci.
, 54
, pp. 142
–152
. 10.1016/j.ijthermalsci.2011.11.01521.
Anand
, V.
, 2014
, “Slip Law Effects on Heat Transfer and Entropy Generation of Pressure Driven Flow of a Power Law Fluid in a Microchannel Under Uniform Heat Flux Boundary Condition
,” Energy
, 76
, pp. 716
–732
. 10.1016/j.energy.2014.08.07022.
Sajadifar
, S. A.
, Karimipour
, A.
, and Toghraie
, D.
, 2017
, “Fluid Flow and Heat Transfer of Non-Newtonian Nanofluid in a Microtube Considering Slip Velocity and Temperature Jump Boundary Conditions
,” Eur. J. Mech. B. Fluids
, 61
(1
), pp. 25
–32
. 10.1016/j.euromechflu.2016.09.01423.
Ghosh
, S.
, 2017
, “Relative Effects of Asymmetry and Wall Slip on the Stability of Plane Channel Flow
,” Fluids
, 2
(4
), p. 66
. 10.3390/fluids204006624.
Jahanbakhshi
, A.
, Ahmadi Nadooshan
, A.
, and Bayareh
, M.
, 2018
, “Magnetic Field Effects on Natural Convection Flow of a Non-Newtonian Fluid in an L-Shaped Enclosure
,” J. Therm. Anal. Calorim.
, 133
(3
), pp. 1407
–1416
. 10.1007/s10973-018-7219-625.
Wang
, C. Y.
, 2012
, “Brief Review of Exact Solutions for Slip-Flow in Ducts and Channels
,” ASME J. Fluid. Eng.
, 134
(9
), p. 094501
. 10.1115/1.400723226.
Shirazi
, M.
, Shateri
, A.
, and Bayareh
, M.
, 2018
, “Numerical Investigation of Mixed Convection Heat Transfer of a Nanofluid in a Circular Enclosure With a Rotating Inner Cylinder
,” J. Therm. Anal. Calorim.
, 133
(2
), pp. 1061
–1073
. 10.1007/s10973-018-7186-y27.
Bayareh
, M.
, Hajatzadeh Pordanjani
, A.
, Ahmadi Nadooshan
, A.
, and Shiryan Dehkordi
, K.
, 2016
, “Numerical Study of the Effects of Stator Boundary Conditions and Blade Geometry on the Efficiency of a Scraped Surface Heat Exchanger
,” Appl. Therm. Eng.
, 113
, pp. 1426
–1436
. 10.1016/j.applthermaleng.2016.11.16628.
Goodarzi
, Z.
, Ahmadi Nadooshan
, A.
, and Bayareh
, M.
, 2018
, “Numerical Investigation of Off-Centre Binary Collision of Droplets in a Horizontal Channel
,” J. Braz. Soc. Mech. Sci. Eng.
, 40
(3
), pp. 1
–10
. 10.1007/s40430-018-1075-y29.
Duan
, Z.
, Ma
, H.
, He
, B.
, Su
, L.
, and Zhang
, X.
, 2019
, “Pressure Drop of Microchannel Plate Fin Heat Sinks
,” Micromechines
, 10
(2
), p. 80
. 10.3390/mi10020080Copyright © 2020 by ASME
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