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Open Access Finite Volume Analysis of Free Convection Heat Transfer in a Square Enclosure Filled by a Cu-Water Nanofluid Containing Different Shapes of Heating Cylinder

This study examined numerically natural convection heat transfer of a Cu-water nanofluid in square enclosure containing a central heating cylinder. A two-dimensional solution for natural convection was obtained using the finite volume method with SIMPLE algorithm. A detailed parametric study is conducted to investigate the effect of three different geometric forms of the inner cylinder (circular, square and triangular) on fluid flow and heat transfer characteristics for a wide range of Rayleigh number from 103 to 106 and volume fraction of nanoparticles from 0% to 5%. The results showed that, by changing the shape of the inner cylinder from circular to triangular, the heat transfer rate changes significantly. It is also found that by increasing the volume fraction of nanoparticles and Rayleigh number, the heat transfer rate increases.

Keywords: ENCLOSURE; HEATING CYLINDER; NANOFLUID; NATURAL CONVECTION

Document Type: Research Article

Publication date: August 1, 2017

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  • Journal of Nanofluids (JON) is an international multidisciplinary peer-reviewed journal covering a wide range of research topics in the field of nanofluids and fluid science. It is an ideal and unique reference source for scientists and engineers working in this important and emerging research field of science, engineering and technology. The journal publishes full research papers, review articles with author's photo and short biography, and communications of important new findings encompassing the fundamental and applied research in all aspects of science and engineering of nanofluids and fluid science related developing technologies.
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