Title: Theoretical analysis of entropy generation in peristaltic transport of nanofluid in an asymmetric channel
Authors: E.N. Maraj; S. Nadeem
Addresses: Department of Mathematics, HITEC University, Taxila, 47080, Pakistan ' Department of Mathematics, Quaid-i-Azam University, Islamabad, 44000, Pakistan
Abstract: In this paper, peristaltic flow of nanofluid in an asymmetric channel is examined. The governing equations of nanofluid model for an asymmetric channel are derived and the coupled differential equations are abridged by employing long wave-length and low Reynolds number postulations. Homotopy perturbation technique is incorporated for analytical solution of reduced system of coupled differential equations. Entropy generation is computed by appraisal of thermal and fluid viscosity contribution. The physical features of relevant parameters have been debated by plotting the graphs of pressure rise, fluid velocity, temperature, concentration, entropy generation number, Bejan number and stream functions.
Keywords: nanofluids; asymmetric channels; peristaltic flow; entropy generation; Bejan number; HPM; homotopy perturbation method; nanotechnology; modelling; fluid viscosity; pressure rise; fluid velocity; temperature; concentration; stream functions.
International Journal of Exergy, 2016 Vol.20 No.3, pp.294 - 317
Received: 22 Jun 2015
Accepted: 11 Aug 2015
Published online: 29 Jun 2016 *