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Entropy 2016, 18(10), 355; doi:10.3390/e18100355

Analysis of Entropy Generation in Mixed Convective Peristaltic Flow of Nanofluid

1
Department of Mathematics, Quaid-I-Azam University, Islamabad 45320, Pakistan
2
Nonlinear and Applied Mathematics (NAAM) Research Group, Department of Mathematics, King Abdulaziz University, Jeddah 21589, Saudi Arabia
*
Author to whom correspondence should be addressed.
Academic Editor: Brian Agnew
Received: 28 June 2016 / Revised: 18 September 2016 / Accepted: 23 September 2016 / Published: 30 September 2016
(This article belongs to the Special Issue Advances in Applied Thermodynamics II)

Abstract

This article examines entropy generation in the peristaltic transport of nanofluid in a channel with flexible walls. Single walled carbon nanotubes (SWCNT) and multiple walled carbon nanotubes (MWCNT) with water as base fluid are utilized in this study. Mixed convection is also considered in the present analysis. Viscous dissipation effect is present. Moreover, slip conditions are encountered for both velocity and temperature at the boundaries. Analysis is prepared in the presence of long wavelength and small Reynolds number assumptions. Two phase model for nanofluids are employed. Nonlinear system of equations for small Grashof number is solved. Velocity and temperature are examined for different parameters via graphs. Streamlines are also constructed to analyze the trapping. Results show that axial velocity and temperature of the nanofluid decrease when we enhance the nanoparticle volume fraction. Moreover, the wall elastance parameter shows increase in axial velocity and temperature, whereas decrease in both quantities is noticed for damping coefficient. Decrease is notified in Entropy generation and Bejan number for increasing values of nanoparticle volume fraction. View Full-Text
Keywords: Velocity and thermal slip conditions; peristalsis; water; complaint walls; carbon nanotubes; mixed convection; entropy generation Velocity and thermal slip conditions; peristalsis; water; complaint walls; carbon nanotubes; mixed convection; entropy generation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Hayat, T.; Nawaz, S.; Alsaedi, A.; Rafiq, M. Analysis of Entropy Generation in Mixed Convective Peristaltic Flow of Nanofluid. Entropy 2016, 18, 355.

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