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Showing papers in "International Journal of Thermal Sciences in 2010"


Journal ArticleDOI
TL;DR: In this paper, the authors studied the natural convective boundary-layer flow of a nanofluid past a vertical plate and found that the reduced Nusselt number is a decreasing function of each of Nr, Nb and Nt.

1,218 citations


Journal ArticleDOI
TL;DR: In this paper, an experimental study has been undertaken concerning natural convection heat transfer of a nanofluid in vertical square enclosures of different sizes, whose dimensions, width, height, and length (mm) are 25, 25, 30, 60, 40, 80, 90, and 120, respectively.

615 citations


Journal ArticleDOI
TL;DR: In this paper, the steady boundary-layer flow of a nanofluid past a moving semi-infinite flat plate in a uniform free stream is investigated, where the plate is assumed to move in the same or opposite directions to the free stream.

362 citations



Journal ArticleDOI
TL;DR: In this article, a numerical approach has been used to study the heat and mass transfer from a vertical plate embedded in a porous medium experiencing a first-order chemical reaction and exposed to a transverse magnetic field.

284 citations


Journal ArticleDOI
TL;DR: In this paper, an experimental study was conducted on the cooling of portable hand-held electronic devices using n-eicosane as the phase change material (PCM) placed inside heat sinks with and without internal fins.

266 citations


Journal ArticleDOI
TL;DR: In this article, the authors investigated the heat transfer features of buoyancy-driven nanofluids inside rectangular enclosures differentially heated at the vertical walls, and derived the optimal particle loading for maximum heat transfer.

244 citations


Journal ArticleDOI
TL;DR: In this article, the thermal properties of different knitted fabric structures made from cotton, regenerated bamboo and cotton-bamboo blended yarns were investigated. And it was found that the thermal conductivity of knitted fabrics generally reduces as the proportion of bamboo fibre increases.

213 citations


Journal ArticleDOI
TL;DR: In this paper, a numerical study of the effect of the magnetic field with inclined angle on the flow and heat transfer rate of liquid gallium in a square cavity is presented, where the penalty finite element method with bi-quadratic rectangular elements is used to solve the non-dimensional governing equations.

210 citations


Journal ArticleDOI
TL;DR: In this article, the authors focused on the study of natural convection heat transfer characteristics in a differentially-heated enclosure filled with a CuOeEGeWater nanofluid for different published variable thermal conductivity and variable viscosity models.

207 citations


Journal ArticleDOI
TL;DR: In this paper, a scaling analysis is presented to identify the relative effects of different forces on the boiling process at microscale, and the flow pattern transitions and stability for flow boiling of water and FC-77 are evaluated.

Journal ArticleDOI
TL;DR: In this article, the authors presented the results of a numerical study on the natural convection in a right triangular enclosure, with a heat source on its vertical wall and filled with a water-CuO nanofluid.

Journal ArticleDOI
TL;DR: In this article, the authors explored the use of particle swarm optimization (PSO) algorithm for thermodynamic optimization of a cross flow plate-fin heat exchanger, and the results of optimization using PSO are validated by comparing with those obtained by using GA.

Journal ArticleDOI
TL;DR: In this paper, the authors examined the periodic natural convection in an enclosure filled with nanofluids and found that the use of nanoparticles, in particular Cu, enhances the heat transfer especially at low Rayleigh numbers.

Journal ArticleDOI
TL;DR: In this article, the authors examined pressure-driven water flow through carbon nanotubes (CNTs) using molecular dynamics simulation and found that flow through CNTs with diameters as small as 1.66 nm can be fully understood using continuum fluid mechanics.

Journal ArticleDOI
TL;DR: In this paper, a general analytical solution is used to study the whole temperature field of LED packaging substrate, this solution is based on the method of variable separation for thermal spreading resistances of eccentric heat sources on a rectangular flux channel.

Journal ArticleDOI
TL;DR: In this paper, a simple procedure by which the entropy generation in simultaneous heat and mass exchange devices can be minimized is described. But the procedure is not suitable for a large number of cooling towers.

Journal ArticleDOI
TL;DR: In this paper, a set of copper foam pieces were welded on the plain copper surface to form the copper foam covers for the pool boiling heat transfer enhancement, and the effect of pool liquid temperature on the heat transfer enhanced depends on the ppi value.

Journal ArticleDOI
TL;DR: In this paper, the authors apply irreversibility analysis to characterize humidification-dehumidification (HD) desalination cycles and identify how to further improve cycles and components.

Journal ArticleDOI
TL;DR: In this paper, the effect of the thermomass (TM) of the dielectric lattices on thermal lagging was studied to accommodate the effects of the TM on thermal wave propagation.

Journal ArticleDOI
TL;DR: In this paper, a grid refinement study was conducted to compare grid independent predictions from alternative turbulence models (k − ǫ, SST k − ω and RSM-ω ) with DNS results and experimental pressure drop and heat transfer data.

Journal ArticleDOI
TL;DR: In this article, a comprehensive cycle simulation program has been developed using C language for conventional engine and low heat rejection (LHR) engine operated with diesel and biodiesel, which is used for the prediction of cylinder pressure, heat transfer, heat release, work done and emission levels.

Journal ArticleDOI
TL;DR: The influence of temperature-dependent fluid properties on the hydro-magnetic flow and heat transfer over a stretching surface is studied in this paper, where the authors show that the properties depend on five parameters, namely the stretching parameter, viscosity parameter, magnetic parameter, variable thermal conductivity parameter, and the Prandtl number.

Journal ArticleDOI
TL;DR: In this article, an experimental study was performed to investigate the thermal performance of an inclined miniature grooved heat pipe using water-based CuO nanofluid as the working fluid.

Journal ArticleDOI
TL;DR: In this article, Damseh et al. used the fourth-order Runge-Kutta method to solve the title problem for infinite vertical plates. But this method was not suitable for the case of infinite vertical plate and several new features emerged from this approach.

Journal ArticleDOI
TL;DR: In this paper, the inverse non-Fourier bio-heat transfer problem in the bi-layer spherical geometry is analyzed, and the comparison of the history of temperature increase among the present calculated results, the calculated values from the classical bioheat transfer equation and the experimental data are made for various measurement locations.

Journal ArticleDOI
TL;DR: In this article, a numerical investigation has been carried out to examine laminar flow and heat transfer characteristics in a three-dimensional isothermal wall square channel with 45°-angled baffles.

Journal ArticleDOI
TL;DR: In this paper, the effects of the time-mean jet Reynolds number, temperature difference between the jet flow and the impinging surface, nozzle-to-target distance as well as the frequency on heat and mass transfer were examined.

Journal ArticleDOI
TL;DR: In this paper, the steady two-dimensional stagnation-point flow of a viscoelastic second-grade fluid over a stretching surface with heat transfer is examined, where the fluid impinges on the wall obliquely and the governing partial differential equations are transformed into a set of three non-dimensional ordinary differential equations.

Journal ArticleDOI
TL;DR: In this article, an experimental investigation has been carried out to study the enhancement in heat transfer coefficient by coiled wire inserts during heating of engine oil inside a horizontal tube, where seven coiled wires having pitches of 12-69mm and wire diameters of 2.0-3.5mm were put one by one in the oil-side of test-section.