Study on fluid flow and heat transfer in fluid channel filled with KKL model-based nanofluid during natural convection using FVM
International Journal of Numerical Methods for Heat & Fluid Flow
ISSN: 0961-5539
Article publication date: 13 June 2019
Issue publication date: 11 September 2019
Abstract
Purpose
A comprehensive study on the fluid flow and heat transfer in a nanofluid channel is carried out. The configuration of the channel is as like as quarter channel. The channel is filled with CuO–water nanofluid.
Design/methodology/approach
The Koo–Kleinstreuer–Li model is used to estimate the dynamic viscosity and consider the Brownian motion. On the other hand, the influence of nanoparticles’ shapes on the heat transfer rate is considered in the simulations. The channel is included with the injection pipes which are modeled as active bodies with constant temperature in the 2D simulations.
Findings
The Rayleigh number, nanoparticle concentration and the thermal arrangements of internal pipes are the governing parameters. The hydrothermal aspects of natural convection are investigation using different approaches such as average Nusselt number, total entropy generation, Bejan number, streamlines, temperature fields, local heat transfer irreversibility, local fluid friction irreversibility and heatlines.
Originality/value
The originality of this work is investigation of fluid flow, heat transfer, entropy generation and heatline visualization within a nanofluid-filled channel using a finite volume method.
Keywords
Acknowledgements
This work is Key Supported Disciplines of Guizhou Province Computer Application Technology (No. QianXueWeiHeZi ZDXX[2016]20).
Citation
Rao, Y., Shao, Z., Rahimi, A., Kasaeipoor, A. and Hasani Malekshah, E. (2019), "Study on fluid flow and heat transfer in fluid channel filled with KKL model-based nanofluid during natural convection using FVM", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 29 No. 8, pp. 2622-2641. https://doi.org/10.1108/HFF-09-2018-0496
Publisher
:Emerald Publishing Limited
Copyright © 2019, Emerald Publishing Limited