.... Novelty in the current research is explicitly established via four aspects. First is to evaluate magnetic nanoparticles influence in considered flow problem. Such consideration has relevance in industrial and biomedical utilizations like spintronic devices, catalysis, and MEMS. Second is to scrutinize...

... conductivity nanoparticles functionally graded material Nanofluids are a colloidal dispersion of solid nanoparticles in a continuous liquid matrix. Nanofluids are highly desirable for heat transfer applications due to their high thermal conductivity which is a function of the base fluid and inclusion...

... r F d Θ d ς = 0 The density of basefluid (water) ρ bf  = 997.1 kg m −3 , the density of CuO nanoparticle ρ sp  = 6320 kg m −3 , specific heat capacity of the basefluid ( ρ C p ) bf = 4179   J   kg − 1   K , specific heat capacity...

.... The numerical model is based on the one-fluid mixture approach combined with the single-domain enthalpy porosity model for phase change, and it is implemented in fluent software package. The linear dependence of the liquidus and solidus temperatures with the concentration of the nanoparticles was assumed...

....1551-2916.2005.00176.x [4] Khodadadi , J. M. , and Hosseinizadeh , S. F. , 2007 , “ Nanoparticle-Enhanced Phase Change Materials (NEPCM) With Great Potential for Improved Thermal Storage ,” Int. Commun. Heat Mass Transfer , 34 , pp. 534 – 543 . 10.1016/j.icheatmasstransfer.2007.02.005...

.... The measured values deviated as high as 69% from weighted average estimates of thermal properties. These results suggest that factors not accounted for in weighted average estimates significantly influence the thermal properties of the matrix. laser flash analyzer reactive materials nanoparticles...

... investigation on freezing of NePCM in comparison to the base PCM are presented. A one-dimensional Stefan model was developed to study the unidirectional freezing of NePCM in a finite slab. Only the thermal energy equation was considered and the presence of static dispersed nanoparticles was modeled using...

... fluids rather than like conventional solid–liquid mixtures. This assumption implies that all the convective heat transfer correlations available in the literature for single-phase flows can be extended to nanoparticle suspensions, provided that the thermophysical properties appearing in them...

... and transmission electron microscopies. In order to investigate the influence of synthesis conditions on the thermal conductivity of composites, various concentrations of multiwall carbon nanotubes, graphites, surfactants, and polymer matrix materials as well as two different nanoparticles and solvents were tested...

.... Physical model for ultrafast phase change 12 02 2011 26 07 2011 21 11 2011 21 11 2011 evaporation gold high-speed optical techniques laser beam effects laser sintering melting nanoparticles particle size solidification laser sintering nanosized metal...

.... Many studies have been done on the pool boiling characteristics of nanofluids, most of which have been with nanofluids containing oxide nanoparticles owing to the ease in their preparation. Deterioration in boiling heat transfer was observed in some studies. Metallic nanofluids having metal...

...W. Escher; T. Brunschwiler; N. Shalkevich; A. Shalkevich; T. Burgi; B. Michel; D. Poulikakos Nanofluids have been proposed to improve the performance of microchannel heat sinks. In this paper, we present a systematic characterization of aqueous silica nanoparticle suspensions with concentrations up...

...) and alumina ( Al 2 O 3 ) nanoparticles in the based fluid of water with the Prandtl number Pr = 7 to investigate the effect of the solid volume fraction parameter ϕ of the fluid and heat transfer characteristics. The skin friction coefficient, Nusselt number, and the velocity and temperature profiles...

...Dhruv Singh; Jayathi Y. Murthy; Timothy S. Fisher Phonon transport across constrictions formed by a nanowire or a nanoparticle on a substrate is studied by a numerical solution of the gray Boltzmann transport equation (BTE) resolving the effects of two length scales that govern problems...

... reasons for the experimental finding of significant conductivity enhancement include the nanoparticle Brownian motion, the Brownian-motion-induced convection, the liquid layering at the liquid-particle interface, and the nanoparticle cluster/aggregate. Although there is a lack of agreement regarding...

..., a consensus is lacking on if and how the dispersed nanoparticles alter the thermal transport in convective flows. In this work, an experimental investigation was conducted to study single-phase forced convection of Al 2 O 3 -water nanofluid in a circular minichannel with a 1.09 mm inner diameter. The friction...

...Donghyun Shin; Debjyoti Banerjee Silica nanoparticles (1% by weight) were dispersed in a eutectic of lithium carbonate and potassium carbonate (62:38 ratio) to obtain high temperature nanofluids. A differential scanning calorimeter instrument was used to measure the specific heat of the neat molten...

...Anilchandra Attaluri; Ronghui Ma; Liang Zhu Magnetic nanoparticles have been used in clinical and animal studies to generate localized heating for tumor treatments when the particles are subject to an external alternating magnetic field. Currently, since most tissue is opaque, the detailed...

... that involves a dispersion of high velocity alumina shell fragments and molten Al droplets that promote a pressure build-up by inducing a bulk movement of fluid. This mechanism unique to nanoparticle reaction may promote convection without the need for additional gas generation. Wang , L. L. , Munir...

...Saeid Vafaei; Dongsheng Wen This work investigates subcooled flow boiling of aqueous based alumina nanofluids in 510 μ m single microchannels with a focus on the effect of nanoparticles on the critical heat flux. The surface temperature distribution along the pipe, the inlet and outlet pressures...