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Research Papers: Heat and Mass Transfer

Comparison Between Casson Fluid Flow in the Presence of Heat and Mass Transfer From a Vertical Cone and Flat Plate

[+] Author and Article Information
A. Jasmine Benazir

Department of Mathematics,
School of Advanced Sciences,
VIT University,
Vellore 632014, India
e-mail: jasminebenazir@gmail.com

R. Sivaraj

Department of Mathematics,
School of Advanced Sciences,
VIT University,
Vellore 632014, India
e-mail: sivaraj.kpm@gmail.com

M. M. Rashidi

Shanghai Key Lab of Vehicle Aerodynamics
and Vehicle Thermal Management Systems,
Tongji University,
4800 Cao An Road,
Jiading, Shanghai 201804, China;
ENN-Tongji Clean Energy Institute
of Advanced Studies,
Shanghai 201804, China
e-mails: mm_rashidi@yahoo.com;
mm_rashidi@tongji.edu.cn

1Corresponding author.

Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received November 1, 2015; final manuscript received June 7, 2016; published online July 19, 2016. Assoc. Editor: Guihua Tang.

J. Heat Transfer 138(11), 112005 (Jul 19, 2016) (6 pages) Paper No: HT-15-1686; doi: 10.1115/1.4033971 History: Received November 01, 2015; Revised June 07, 2016

The present study explores the influence of viscous dissipation, Joule heating, and double dispersion on unsteady, free convective magnetohydrodynamics (MHD) flow of an incompressible Casson fluid over a vertical cone and flat plate saturated with porous medium subject to variable viscosity and variable electrical conductivity. The governing coupled, nonlinear partial differential equations are solved by Crank–Nicolson method. The effects of various significant parameters on flow, heat, and mass transfer characteristics are displayed in the form of figures and tables. The results indicate that the presence of variable viscosity parameter meagerly accelerates the fluid flow. It is observed that heat transfer is enhanced for increasing the thermal dispersion parameter and Eckert number.

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References

Figures

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Fig. 1

Physical coordinate system of the flow

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Fig. 2

Effect of the Casson fluid parameter on velocity distribution

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Fig. 3

Effect of magnetic field parameter on velocity distribution

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Fig. 4

Effect of variable viscosity parameter on velocity distribution

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Fig. 5

Effect of Eckert number on velocity distribution

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Fig. 6

Effect of Prandtl number on temperature distribution

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Fig. 7

Effect of thermal dispersion parameter on temperature distribution

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Fig. 8

Effect of Eckert number on temperature distribution

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Fig. 9

Effect of magnetic field parameter on temperature distribution

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Fig. 10

Effect of Schmidt numbers on concentration distribution

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Fig. 11

Effect of solutal dispersion parameter on concentration distribution

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Fig. 12

Effect of magnetic field parameter on concentration distribution

Tables

Errata

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