ENTROPY GENERATION IN MHD FLOW OF VISCOELASTIC NANOFLUIDS WITH HOMOGENEOUS-HETEROGENEOUS REACTION, PARTIAL SLIP AND NONLINEAR THERMAL RADIATION

Year 2020, , 327 - 345, 01.04.2020

Mohammed Almakki Hiranmoy Mondal Precious Sibanda

https://doi.org/10.18186/thermal.712452

Cited By: 16

Abstract

We investigate the combined effects of homogeneous and heterogeneous reactions in the boundary layer flow
of a viscoelastic nanofluid over a stretching sheet with nonlinear thermal radiation. The incompressible fluid is
electrically conducting with an applied a transverse magnetic field. The conservation equations are solved using the
spectral quasi-linearization method. This analysis is carried out in order to enhance the system performance, with the
source of entropy generation and the impact of Bejan number on viscoelastic nanofluid due to a partial slip in
homogeneous and heterogeneous reactions flow using the spectral quasi-linearization method. Various fluid parameters
of interest such as entropy generation, Bejan number, fluid velocity, shear stress heat and mass transfer rates are studied
quantitatively, and their behaviors are depicted graphically. A comparison of the entropy generation due to the heat
transfer and the fluid friction is made with the help of the Bejan number. Among the findings reported in this study is
that the entropy generation has a significant impact in controlling the rate of heat transfer in the boundary layer region.

Keywords

Nanofluids, Viscoelastic Fluid, Homogeneous—Heterogeneous Reactions, Nonlinear Thermal Radiation

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