Open AccessModel and Comparative Study for Flow of Viscoelastic Nanofluids with Cattaneo-Christov Double Diffusion
Author(s) -
Tasawar Hayat,
Arsalan Aziz,
Taseer Muhammad,
Ahmed Alsaedi
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.0168824
Subject(s) - thermophoresis , nanofluid , mass transfer , nonlinear system , mechanics , viscoelasticity , brownian motion , heat transfer , thermodynamics , diffusion , flow (mathematics) , physics , thermal diffusivity , relaxation (psychology) , lewis number , mass diffusivity , partial differential equation , materials science , social psychology , psychology , quantum mechanics
Here two classes of viscoelastic fluids have been analyzed in the presence of Cattaneo-Christov double diffusion expressions of heat and mass transfer. A linearly stretched sheet has been used to create the flow. Thermal and concentration diffusions are characterized firstly by introducing Cattaneo-Christov fluxes. Novel features regarding Brownian motion and thermophoresis are retained. The conversion of nonlinear partial differential system to nonlinear ordinary differential system has been taken into place by using suitable transformations. The resulting nonlinear systems have been solved via convergent approach. Graphs have been sketched in order to investigate how the velocity, temperature and concentration profiles are affected by distinct physical flow parameters. Numerical values of skin friction coefficient and heat and mass transfer rates at the wall are also computed and discussed. Our observations demonstrate that the temperature and concentration fields are decreasing functions of thermal and concentration relaxation parameters.