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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-421-2

International Heat Transfer Conference 15
August, 10-15, 2014, Kyoto, Japan

Comparative Study on Simulation of Convective Al2O3-Water and ZrO2-Water Nanofluid by Using ANSYS-FLUENT

Get access (open in a dialog) DOI: 10.1615/IHTC15.nsm.009196
pages 5803-5816

Sinopsis

Nanofluids which are a new heat transfer fluids by suspension of ultrafine particles into a conventional heat transfer fluid find its situation within recent researches. The proper thermal performance of nanofluids is the most advantage in comparison with conventional heat transfer fluids. However, the lack of hybrid models for properties of nanofluids in different conditions makes matter to be a part of industrial applications. In this study, convective heat transfer of Al2O3-water and ZrO2-water nanofluids are investigated by simulation with ANSYSFLUENT. The simulations consist of using the built in models in ANSYS-FLUENT namely homogeneous and Discrete Phase Modelling (DPM) as well as the modified models by using recent correlations for nanofluid properties. The resultant simulations present good agreement with experimental data. Comparing various appropriate turbulence models, the k-???? Realizable model is identified as the best model for simulating nanofluid turbulence model. In spite of ability of DPM for prediction of pressure drop, it has been realized that this model estimation for heat transfer characteristics of turbulence flow is not reliable for higher volume of fraction.