Abstract
In the present work, we studied a nonsimilar solution of steady forced convection boundary layer flow and heat transfer of a nanofluid past a stretching horizontal plate. One-phase model has been used for this study. The nonsimilarity equations are solved numerically. We considered a nanofluid consists of AL2O3 as a nanoparticles and water as a base fluid. The volume fraction of nanoparticles is considered in the range 0 ≤ ? ≤ 0.2. with prandtl number pr = 6.2 for the water working as a regular fluid. The parameters which governing the solution are volume fraction of nanoparticles , stretching plate parameter ξ and power law index N. We investigated the effect of these parameters on the skin friction coefficient, Nusselt number, velocity and temperature profiles. We found that heat transfer rate and skin fraction increased when ? increased. On the other hand, we concluded that the increase in ξ and N made heat transfer rate increases and skin fraction decreases.
Highlights
Various industries such as power, manufacturing, transportation, and electronics demand an efficient heat exchanger devices
Thermal conductivity of nanofluid has been measured with several nanoparticles volume fraction, material and dimension in several base fluids and all findings show that thermal conductivity of nanofluid is higher than the base fluids
Estman et al [3] observed that the effective thermal conductivity of metallic nanofluid increase by up to 40% for the nanofluid consisting of ethylene glycol containing approximately 0.3% volume Cu nanoparticles of mean diameter less than 10 nm
Summary
Various industries such as power, manufacturing, transportation, and electronics demand an efficient heat exchanger devices. Various types of powders such as metal or metal oxide nanoparticles, can be combined with a conductive base fluid, such as water or ethylene glycol to produce a nanofluid. Estman et al [3] observed that the effective thermal conductivity of metallic nanofluid increase by up to 40% for the nanofluid consisting of ethylene glycol containing approximately 0.3% volume Cu nanoparticles of mean diameter less than 10 nm. This capabilities suggests the possibility of using nanofluids in air conditioning systems [4]. Kuznetsov and Nield [8] studied the natural
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