Nanofluid flow and heat simultaneously induced by two stretchable rotating disks using Buongiorno’s model
Multidiscipline Modeling in Materials and Structures
ISSN: 1573-6105
Article publication date: 21 September 2018
Issue publication date: 29 October 2018
Abstract
Purpose
The purpose of this paper is to investigate the nanofluid flow and heat transfer induced by two co- axially rotating disks using Buongiorno’s model. This model took into account the Brownian diffusion and thermophoresis effects due to the presence of nanoparticles.
Design/methodology/approach
The governing partial differential equation was transformed into a set of nonlinear ordinary differential equations by using similarity transformation and solved numerically using shooting techniques.
Findings
The present work is a comparison study of Maxwell-Garnett model and modified Maxwell model for the effective thermal conductivity of nanofluids. The effects of different involved parameters on velocity and temperature profile are examined graphically. Numerical values of skin friction coefficient and Nusselt number are computed and studied.
Originality/value
It is found that the results of azimuthal velocity profile are an increasing function of upper disk stretching parameter. The radial and axial velocity profile is enlarged for a large value of lower stretching parameter. Fluid temperature decays for large values Reynolds number and lower disk stretching parameter.
Keywords
Citation
Muthtamilselvan, M. and Renuka, A. (2018), "Nanofluid flow and heat simultaneously induced by two stretchable rotating disks using Buongiorno’s model", Multidiscipline Modeling in Materials and Structures, Vol. 14 No. 5, pp. 1115-1128. https://doi.org/10.1108/MMMS-03-2018-0045
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited