Publication: The effects of wavy-wall phase shift on thermal-hydraulic performance of Al2O3-water nanofluid flow in sinusoidal-wavy channel
Date
2014
Authors
Ahmed M.A.
Yusoff M.Z.
Ng K.C.
Shuaib N.H.
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier Ltd
Abstract
In this paper, laminar forced convection flow of Al2O3-water nanofluid in sinusoidal-wavy channel is numerically studied. The two-dimensional governing equations of continuity, momentum and energy equations in body-fitted coordinates are solved using finite volume method. The sinusoidal-wavy channel with four different phase shifts of 0°, 45°, 90° and 180° are considered in this study. The results of numerical solution are obtained for Reynolds number and nanoparticle volume fractions ranges of 100-800 and 0-5%, respectively. The effect of phase shift, nanoparticle volume fraction and Reynolds number on the streamline and temperature contours, local Nusselt number, local skin friction coefficient, average Nusselt number, non-dimensional pressure drop and thermalhydraulic performance factor have been presented and analyzed. Results indicate that the optimal performance is achieved by 0° phase shift channel over the ranges of Reynolds number and nanoparticles volume fractions. © 2014 The Authors. Published by Elsevier Ltd.