Enhancing thermal conductivity of fluids with nano-particles
01 Jan 1995-Vol. 231, pp 99-105
About: The article was published on 1995-01-01 and is currently open access. It has received 7263 citations till now. The article focuses on the topics: Thermal conductivity & Nanoparticle.
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TL;DR: In this paper, a modified Fourier's law of heat conduction for power-law fluids is adopted by assuming that the thermal conductivity is powerlaw-dependent on the velocity gradient.
112 citations
Cites background from "Enhancing thermal conductivity of f..."
...As a novelty, nanofluid, proposed by Choi [21], is physically described as a heat transfer basic fluid containing a suspension of submicronic solid particles (nanoparticles)....
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TL;DR: In this paper, the effects of shape factors of nanoparticles on natural convection in a fluid-saturated porous annulus developed between the elliptical cylinder and square enclosure were investigated.
Abstract: The purpose of the current study is to numerically investigate the effects of shape factors of nanoparticles on natural convection in a fluid-saturated porous annulus developed between the elliptical cylinder and square enclosure. A numerical method called the control volume-based finite element method is implemented for solving the governing equations. The modified flow and thermal structures and corresponding heat transfer features are investigated. Numerical outcomes reveal very good grid independency and excellent agreement with the existing studies. The obtained results convey that at a certain aspect ratio, an increment in Rayleigh and Darcy numbers significantly augments the heat transfer and average Nusselt number. Further, enhancement of Rayleigh number increases the velocity of nanofluid, while that of aspect ratio of the elliptical cylinder shows the opposite trend.
112 citations
Cites background from "Enhancing thermal conductivity of f..."
...Choi and Eastman [35] developed nanofluids (nanoscale particles are suspended in a base fluid) which served as the best medium for an effective and efficient convective heat transfer process imparting high-performance energy efficient cooling system needed for many modern applications....
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TL;DR: In this paper, the authors investigated thermal performance and entropy generation of water-alumina nanofluid flows in porous media embedded in a microchannel under local thermal non-equilibrium condition.
112 citations
Additional excerpts
...This kind of fluid was coined ‘‘nanofluid’’ [5]....
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TL;DR: In this article, a multi-objective optimization of nanofluid aluminum oxide in a mixture of water and ethylene glycol (40:60) is studied, where neural network optimization is connected to NSGA-II algorithm and at any time assessment of the fitness function, the neural network model is called.
112 citations
TL;DR: In this paper, an isotherm heat transfer system has been designed and built in order to investigate the effect of utilizing water/graphene oxide nanofluid flow on heat transfer and the friction coefficient in a circular profile copper tube.
111 citations
Cites methods from "Enhancing thermal conductivity of f..."
...The term ‘nanofluid’ was used by Choi in 1995 for the first time [8]....
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