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Flow and Heat Transfer of Gold-Blood Nanofluid in a Porous Channel with Moving/Stationary Walls

Published online by Cambridge University Press:  09 November 2016

S. Srinivas ,
A. Vijayalakshmi  and
A. Subramanyam Reddy
S. Srinivas*
Affiliation:
Department of MathematicsSchool of Advanced SciencesVIT UniversityVellore, India
A. Vijayalakshmi
Affiliation:
Department of MathematicsSchool of Advanced SciencesVIT UniversityVellore, India
A. Subramanyam Reddy
Affiliation:
Department of MathematicsSchool of Advanced SciencesVIT UniversityVellore, India
*
*Corresponding author ([email protected])
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Abstract

The present study investigates the flow and heat transfer characteristics of blood carrying gold nanoparticles in a porous channel with moving/stationary walls in the presence of thermal radiation. Blood is considered as Newtonian fluid which is the base fluid and gold (Au) as nanoparticles. The governing equations are transformed into system of ordinary differential equations by using similarity transformations. The analytical solutions are obtained for the flow variables by employing homotopy analysis method (HAM). The analytical solutions are compared with the numerical solutions which are obtained by shooting technique along with Runge-Kutta scheme. It was noticed that there is a good agreement between analytical and numerical results. The influence of various parameters on velocity, temperature and heat transfer rate of gold-blood nanofluid has been discussed in detail. The temperature of the nanofluid increases with increasing the nanoparticle volume fraction. The heat transfer rate at the top wall increases with increasing nanoparticle volume fraction while it decreases for a given increase in radiation parameter.

Keywords

Gold-blood nanofluidPorous channelThermal radiationDarcy number
Type
Research Article
Information
Journal of Mechanics , Volume 33 , Issue 3 , June 2017 , pp. 395 - 404
Copyright
Copyright © The Society of Theoretical and Applied Mechanics 2017 

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