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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Heat transfer and pressure drop characteristics of a horizontal annular passage in the transitional flow regime
TL;DR: In this paper, the authors performed experiments on the annular passage of a horizontal concentric counterflow tube-in-tube heat exchanger operated with water for non-fully developed flow associated with a standard inlet geometry type.
Journal ArticleDOI
The study of micro scale effects in continuum flows with an experimental set-up with a continuously decreasing characteristic length
O. Hausner,Heinz Herwig +1 more
TL;DR: In this paper, the authors designed an experimental set-up with a slender cone (cone angle 14°) imbedded in a sleeve as the geometrical counter part to find out at which length scale Lc micro effects occur.
Journal ArticleDOI
Effects of surface roughness on the stability and dynamics of microtubes conveying internal fluid
TL;DR: In this paper, a theoretical model is presented to describe the dynamic behaviors of rough microtubes by introducing correction factors, which account for the effects of the surface roughness both on the structure and the internal fluid.
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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