Journal ArticleDOI
Flow characteristics of water in microtubes
Gh. Mohiuddin Mala,Dongqing Li +1 more
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TLDR
In this paper, a roughness-viscosity model was proposed to interpret the experimental data and the results indicated significant departure of flow characteristics from the predictions of the conventional theory for microtubes with smaller diameters.About:
This article is published in International Journal of Heat and Fluid Flow.The article was published on 1999-04-01. It has received 711 citations till now. The article focuses on the topics: Water flow & Pressure drop.read more
Citations
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Surface roughness analysis and improvement of PMMA-based microfluidic chip chambers by CO2 laser cutting
TL;DR: In this article, the surface roughness of a polymethyl methacrylate (PMMA)-based microfluidic chip was studied by a noncontact 3D surface profiler.
Journal ArticleDOI
Hotspot thermal management using a microchannel-pinfin hybrid heat sink
Danish Ansari,Kwang-Yong Kim +1 more
TL;DR: In this article, an energy-efficient micro heat sink was proposed for thermal management of microprocessors with heterogeneous power distributions, where rectangular microchannels were used over the low heat-flux zone (background area), and an array of cylindrical pinfins were incorporated over the high heat-fluid zone (hotspot area) of the heat sink.
Journal ArticleDOI
Single phase flow pressure drop and heat transfer in rectangular metallic microchannels
Amirah M. Sahar,Mehmed Rafet Özdemir,Ekhlas M. Fayyadh,Jan G. Wissink,Mohamed M. Mahmoud,Mohamed M. Mahmoud,Tassos G. Karayiannis +6 more
TL;DR: In this article, numerical simulations were performed using Fluent 14.5 to investigate single phase flow and conjugate heat transfer in copper rectangular microchannels in 3D thin-wall models.
Journal ArticleDOI
A fractal analysis of laminar flow resistance in roughened microchannels
TL;DR: In this paper, the fractal geometry theory and method are used to simulate the rough surface topography, and the pressure gradients, friction factors and Poiseuille numbers for laminar flow through microchannels with roughened surfaces are derived.
References
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Boundary layer theory
TL;DR: The flow laws of the actual flows at high Reynolds numbers differ considerably from those of the laminar flows treated in the preceding part, denoted as turbulence as discussed by the authors, and the actual flow is very different from that of the Poiseuille flow.
Journal ArticleDOI
Measurement of friction factors for the flow of gases in very fine channels used for microminiature Joule-Thomson refrigerators
Wu Peiyi,W.A. Little +1 more
TL;DR: In this article, the friction factors for the flow of gases in the fine channels used for microminiature Joule-Thomson refrigerators have been measured using a photolithographic technique.
Journal ArticleDOI
Experimental Investigation on Liquid Forced-Convection Heat-Transfer Through Microchannels
B. X. Wang,Xiaofeng Peng +1 more
TL;DR: In this paper, the authors investigated the single-phase forced-flow convection of water or methanol flowing through microchannels with rectangular cross-section and found that the fully developed turbulent convection regime was initiated at about Re = 1000-1500.
Journal ArticleDOI
Frictional flow characteristics of water flowing through rectangular microchannels
TL;DR: In this paper, the authors investigated the flow characteristics of water flowing through rectangular microchannels having hydraulic diameters of 0.133-0.367 mm and H/W ratios between 0.333-1.72i.
Journal ArticleDOI
Measurement of the heat transfer characteristics of gas flow in fine channel heat exchangers used for microminiature refrigerators
Peiyi Wu,W.A. Little +1 more
TL;DR: In this article, heat transfer characteristics have been measured for the flow of gas in the fine channels of the heat exchangers used for microminiature J-T refrigerators.
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