Entropy optimization of MHD Casson-Williamson Fluid Flow over a convectively heated stretchy sheet with Cattaneo-Christov dual Flux

Document Type : Article

Authors

1 Department of Mathematics, Dr. N.G.P. Arts and Science College, Coimbatore, Tamil Nadu, India

2 Department of Mathematics, King Abdulaziz University, Jeddah 21589, Saudi Arabia

Abstract

This work confers the comparative study of Casson-Williamson fluid flow over a heated porous stretchy sheet. The energy and mass transfer equations are modeled by Cattaneo-Christov theory. The governing flow models were altered into an ODE model with the use of suitable transformations. The HAM scheme is applied to find the series solutions. The response of diverse flow variables on fluid speed, fluid warmness, liquid concentration, skin friction coefficient, local Nusselt number, local Sherwood number, local entropy generation number and Bejan number are analyzed through graphs and charts. It is found that the fluid speed subsides when surging values of the magnetic field, porosity, Casson fluid, Williamson fluid and injection/suction parameters. The fluid warmness escalates for a high amount of radiation, convective heating and heat generation/absorption parameters and its suppresses when enriching the convective cooling parameter. The chemical reaction parameter leads to rise in the thickness of the solutal boundary layer. The higher quantity of skin friction coefficient occurs in Casson fluid compared to Williamson fluid. The local entropy generation decimates when growing the Casson and Williamson parameters and it aggravates when raising the Biot number. The Bejan number exalts when upgrading the Reynolds, Brinkman and Biot numbers.

Keywords

References

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Scientia Iranica
Volume 29, Issue 5
Transactions on Mechanical Engineering (B)
September and October 2022
Pages 2317-2331

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History

  • Receive Date: 09 May 2021
  • Revise Date: 18 January 2022
  • Accept Date: 13 June 2022

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