Open AccessNumerical simulation for peristalsis of Carreau-Yasuda nanofluid in curved channel with mixed convection and porous space
Author(s) -
Anum Tanveer,
Tasawar Hayat,
Ahmed Alsaedi,
Bashir Ahmad
Publication year - 2017
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0170029
Subject(s) - nanofluid , mechanics , darcy number , carreau fluid , reynolds number , porous medium , heat transfer , mass transfer , physics , convection , combined forced and natural convection , materials science , thermodynamics , natural convection , classical mechanics , porosity , rayleigh number , turbulence , non newtonian fluid , composite material
Main theme of present investigation is to model and analyze the peristaltic activity of Carraeu-Yasuda nanofluid saturating porous space in a curved channel. Unlike the traditional approach, the porous medium effects are characterized by employing modified Darcy’s law for Carreau-Yasuda fluid. To our knowledge this is first attempt in this direction for Carreau-Yasuda fluid. Heat and mass transfer are further considered. Simultaneous effects of heat and mass transfer are examined in presence of mixed convection, viscous dissipation and thermal radiation. The compliant characteristics for channel walls are taken into account. The resulting complex mathematical system has been discussed for small Reynolds number and large wavelength concepts. Numerical approximation to solutions are thus plotted in graphs and the physical description is presented. It is concluded that larger porosity in a medium cause an enhancement in fluid velocity and reduction in concentration.