Scientia Iranica

Scientia Iranica

Second law analysis for radiative MHD slip flow of a nanofluid over a stretching sheet with non-uniform heat source e ffect

Authors
A.K. Abdul Hakeem 1
M. Govindaraju 1
B. Ganga 2
M. Kayalvizhi 3
1 Department of Mathematics, Sri Ramakrishna Mission Vidhyalaya College of Arts and Science, Coimbatore - 641 020, India.
2 Department of Mathematics, Providence College for Women, Coonoor - 643 104, India.
3 Department of Science and Humanities, Sathyabama University, Chennai - 600 119, India.
10.24200/sci.2016.3916
Abstract
The application of second law of thermodynamics to an electrically conducting incompressible nanofluid slip flow over a stretching sheet is investigated in the presence of thermal radiation and non-uniform heat source/sink, both analytically and numerically. The governing dimensionless equations for this investigation are solved analytically by hypergeometric function and numerically by using Runge-Kutta-Gill method with shooting technique. The e ects of magnetic parameter, nanosolid volume fraction parameter, slip parameter, and suction parameter on velocity pro le are discussed for Ag nanoparticles. Further, in addition to these parameters, the e ects of radiation parameter and non-uniform heat source/sink parameters on temperature pro le and entropy generation number are also discussed. Finally, the results of these pro les of Ag nanoparticles are compared with those of the Cu, Al2O3, and TiO2 nanoparticles. It is inferred that the e ect of slip and non-uniform heat source parameters decrease the entropy generation. The metallic nanoparticles create more entropy than the non-metallic nanoparticles.
Keywords
Nanofluid
entropy generation
MHD
thermal radiation
Non-uniform heat source/sink
stretching sheet
Partial slip
Scientia Iranica
Volume 23, Issue 3 - Serial Number 3
Transactions on Nanotechnology (F)
June 2016
Pages 1524-1538

  • Receive Date 26 June 2016
  • Accept Date 27 July 2017