Numerical investigation of nanofluid turbulent flow in a wavy channel with different wavelengths, amplitudes & phase lag

Toran Tavangar; Abbas Ramiar; Amir Arya; Reza Mohammadyari; Mazaher Rahimi-Esbo

doi:10.5269/bspm.v37i1.31396

Toran Tavangar Amirkabir University of Technology Department of Mechanical Engineering
Abbas Ramiar Babol University of Technology Faculty of Mechanical Engineering http://orcid.org/0000-0003-0777-2778
Amir Arya Babol University of Technology Faculty of Mechanical Engineering
Reza Mohammadyari Islamic Azad University Buinzahra Branch Department of Mathematics
Mazaher Rahimi-Esbo Islamic Azad University Buinzahra Branch Department of Mathematics

DOI: https://doi.org/10.5269/bspm.v37i1.31396

Keywords: Wavy channel, Nanofluid flow, Nusselt number, Phase lag

Abstract

Two dimensional incompressible turbulent nanofluid flow in a sinusoidal wavy channel is numerically investigated. Finite volume method and Rhie and Chow interpolation in a collocated grid arrangement are used for solving governing equations. The effects of the volume fraction of nanoparticles, Reynolds number, phase lag, frequency and amplitude of the wavy walls on the heat transfer rate are studied. The present work showed good agreement with existing experimental and numerical results. Increasing the frequency and amplitude of the wave and nanoparticles volume fraction has great effect on heat transfer rate.

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