Journal ArticleDOI
Natural convection of nano-fluids
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TLDR
In this article, an apparently paradoxical behaviour of heat transfer deterioration was observed in nano-fluid and its dependence on parameters such as particle concentration, material of the particles and geometry of the containing cavity have been investigated.Abstract:
Fluids with nano size solid particles suspended in them have been given the name nano-fluid which in recent studies have shown tremendous promise as heat transfer fluids. However, before suggesting such fluids for applications a thorough knowledge of physical mechanism of heat transfer in such fluids is wanted. The present study deals with one such aspect of natural convection of nano fluids inside horizontal cylinder heated from one end and cooled from the other. An apparently paradoxical behaviour of heat transfer deterioration was observed in the experimental study. Nature of this deterioration and its dependence on parameters such as particle concentration, material of the particles and geometry of the containing cavity have been investigated. The fluid shows characters distinct from that of common slurries.read more
Citations
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Molecular dynamics simulation on flow behaviors of nanofluids confined in nanochannel
TL;DR: In this article, molecular dynamics simulations are used to simulate flow behaviors of nanofluids confined in a nanochannel under different shear velocities, and the degree of nonlinearity, as well as the rotation and translation of nanoparticles, are enhanced with the shear velocity increasing.
Journal ArticleDOI
Experimental and numerical study on microwave heating of nanofluids
TL;DR: In this article, an attempt has been made to study the thermal and fluid flow behavior of Al2O3-water nanofluid, independent of any external surface influences due to conventional surface heating methods.
Journal ArticleDOI
Natural convection of nanofluids in a shallow rectangular enclosure heated from the side
TL;DR: In this article, an analytical and numerical study of natural convection in a shallow rectangular cavity filled with nanofluids is presented, where three types of nanoparticles are taken into consideration: Cu, Al2O3 and TiO2.
Journal ArticleDOI
Spray cooling by solid jet nozzles using alumina/water nanofluids
TL;DR: In this article, an experimental and theoretical investigation of spray cooling with a solid jet nozzle was performed to assess the associated heat transfer coefficients (HTC) using water/alumina nanofluids.
Journal ArticleDOI
Effect of spatial side-wall temperature variation on transient natural convection of a nanofluid in a trapezoidal cavity
TL;DR: In this paper, the authors studied the problem of transient convection heat transfer in a trapezoidal cavity with spatial side-wall temperature variation and found that the heat transfer rate increases in non-uniform heating increments, whereby low wave number values are more affected by the convection.
References
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Book
A Treatise on Electricity and Magnetism
TL;DR: The most influential nineteenth-century scientist for twentieth-century physics, James Clerk Maxwell (1831-1879) demonstrated that electricity, magnetism and light are all manifestations of the same phenomenon: the electromagnetic field as discussed by the authors.
Journal ArticleDOI
Anomalously increased effective thermal conductivities of ethylene glycol-based nanofluids containing copper nanoparticles
TL;DR: In this paper, it was shown that a "nanofluid" consisting of copper nanometer-sized particles dispersed in ethylene glycol has a much higher effective thermal conductivity than either pure or pure glycol or even polyethylene glycol containing the same volume fraction of dispersed oxide nanoparticles.
Journal ArticleDOI
Thermal Conductivity of Heterogeneous Two-Component Systems
R. L. Hamilton,O. K. Crosser +1 more
Journal ArticleDOI
Measuring Thermal Conductivity of Fluids Containing Oxide Nanoparticles
TL;DR: In this paper, a transient hot-wire method was used to measure the thermal conductivity of a small amount of nanoparticles and the experimental results showed that these nanoparticles have substantially higher thermal conductivities than the same liquids without nanoparticles.
Journal ArticleDOI
Conceptions for heat transfer correlation of nanofluids
Yimin Xuan,Wilfried Roetzel +1 more
TL;DR: In this article, the authors proposed two different approaches for deriving heat transfer correlation of the nanofluid, and investigated the mechanism of heat transfer enhancement of the nano-fluid.
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