Results 291 to 300 of about 101,335 (339)

Turbulent forced convection in microtubes

International Journal of Heat and Mass Transfer, 2001
Abstract The anomalous and opposing trends in the published data dealing with turbulent flow friction factor and heat transfer coefficient in microchannels, and their apparent disagreement with macroscale correlations, are discussed. It is shown that the modification of turbulent eddy diffusivities, consistent with the way suspended particles may ...
S. M. Ghiaasiaan, T.S. Laker
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Correlations for Forced Convection in Ducts

1988
A large number of experimental and analytical correlations are available for heat transfer coefficient and flow friction factor for laminar and turbulent flow through channels. In this article, a comprehensive review is made of the available correlations for the laminar and turbulent flow of single-phase Newtonian fluid through circular and noncircular
H. Y. Zhang, R. Oskay, S. Kakaç
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Forced-convective vitrification with liquid cryogens

Cryobiology, 2013
Cell cryopreservation by vitrification generally requires using vitrification solutions with high concentrations of cryoprotectants (CPAs), which are toxic and induce osmotic stresses associated with the addition and removal of CPAs. To increase the cooling rate and reduce the CPA concentration required for vitrification, this study proposed an ...
Yung-Jiun Chen, Wei-Hung Shih, Jen-Hung Huang, Wen-Hsin Hsieh, Shaw-Ruey Lyu   +4 more
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Thermal Turbulence in Forced Convection

The Physics of Fluids, 1967
The role of the Peclét number in forced convection in a fluid layer randomly heated from below is studied experimentally and numerically. The main features of thermal turbulence, especially the intermittency arising from irregular growth of buoyant plumes, are well reproduced numerically.
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Forced Convection Heat Transfer

2015
Convection is the term used for heat transfer mechanism, which takes place in a fluid because of a combination of conduction due to the molecular interactions and energy transport due to the macroscopic (bulk) motion of the fluid itself. In the above definition, the motion of the fluid is essential otherwise, the heat transfer mechanism becomes a ...
Nima Fathi, Bahman Zohuri
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Hydrodynamic or Forced Convection Voltammetry

2021
Similar to the previous chapter (Chap. 3), this chapter includes more advanced electrochemical scenarios to train the student’s ability to handle a wide range of problems. In this topic, the focus is on electrochemical systems that introduce external convection and hydrodynamic factors which add another dimension to electrochemical problems.
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Forced convection

1997
This chapter turns to forced convection. Instead of buoyancy forces, forced convection is a mechanism caused by pumps or fans. This concept is explained through a quick primer on fluid mechanics. Then, the chapter defines the heat transfer coefficient. Afterward, it explores the heat transfer correlations for external flow and for turbulent flow of non-
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Forced convection adsorption cycles

Applied Thermal Engineering, 1998
Abstract The convective thermal wave is part of a patented cycle which uses heat transfer intensification to achieve both high efficiency and small size from a solid adsorption cycle. Such cycles normally suffer from low power density because of poor heat transfer through the adsorbent bed.
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Progress in Turbulent Forced Convection

Journal of Heat Transfer, 1988
This paper presents a brief account of some recent progress toward the understanding and prediction of turbulent forced convection. The impact of technological advances in electronics and optical methods is pointed out. Coverage includes observations on structure, measurement techniques, experimental results, numerical strategies, turbulence modeling ...
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Heat Transfer by Forced Convection

Proceedings of the Physical Society, 1959
Heat transfer between a solid (metal sphere) and a fluid in forced convection at higher Reynolds numbers was studied. The relation between heat transfer, friction-drag force, and drag coefficient was established and the values of drag coefficient are exhibited for different Reynolds numbers.
D V Gogate, H S Desai
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