Our paper includes the results of a numerical simulation performed to study the nanofluid flow around a set of 2D cylinder arrangements. Two types of nanofluids involving Al O and CuO nanoparticles dispersed separately in base fluids of water 2 3 and ethylene glycol mixture 60:40; those nanofluids were taken to evaluate their effect on the flow around different equilateral-triangular arrangements of cylinders. The continuity and the momentum equations have been numerically solved by using a special technic named BSIMPLE algorithm.^ Besides, the thermo-physical parameters of nanofluids have been evaluated using the theory of one fluid phase; thus, contemporary correlations of thermal conductivity and viscosity of nanofluids have been used in this paper as well as our previous work (Int J Adv Technol 7(4)0976–4860, 2016). The correlations are functions of particle volumetric concentration as well as temperature. The results of heat transfer charac- teristics of nanofluid flow around 2D cylinder arrangement revealed clear improvement compared with the base fluids. This enhancement is very interesting in engineering of flows with different equilateral-triangular arrangement characteristics of cylinders, while the gap ratios (G/D) of the three cylinders and incidence angle exert an enhancement efficiency influence on the heat transfer characteristics. The achieved
BioNanoScience – Springer Journals
Published: Jun 2, 2018
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