Non-similar characteristics of mixed convective slip flow over a wedge with temperature-dependent thermo-physical properties

Author:

Roy Nepal Chandra1,Roy Sudharonjon1,Azum Naved2,Khan Anish23,Asiri Abdullah M.23,Rahimi-Gorji Mohammad4

Affiliation:

1. Department of Mathematics, University of Dhaka, Dhaka 1000, Bangladesh

2. Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia

3. Center of Excellency for Advanced Materials Research, King Abdulaziz University, Jeddah, Saudi Arabia

4. Faculty of Medicine and Health Science, Ghent University, Gent 9000, Ghent, Belgium

Abstract

We examined heat and mass transfer characteristics of mixed convective slip flow over a wedge taking into account the effect of variable transport properties. Unlike other studies, we have utilized non-similar transformation to get the non-similar features of the mixed convective slip flow. For comparison, stream function formulation is used to reduce the governing equation into a convenient form for short- and long-time regimes. We have determined the series solutions by adopting the perturbation techniques. The agreement between the numerical and series solutions is found to be excellent. Numerical solutions reveal that the slip parameters augment the momentum, thermal and concentration boundary layers. The local skin friction coefficient, the local Nusselt number and the local Sherwood number are found to decrease for higher value of slip parameters. For the increasing value of the variable viscosity parameter, the velocity is stronger, but the temperature and concentration lessen. Contrary to this, this parameter diminishes the local skin friction coefficient, local Nusselt number and local Sherwood number. Due to the increase of mass diffusivity parameter, the velocity and concentration significantly increase whereas the temperature remains almost unaffected. Moreover, the mass diffusivity variation parameter leads to an increase in the local skin friction coefficient and local Nusselt number, but it reduces the local Sherwood number.

Funder

Deanship of Scientific Research (DSR), King Abdulaziz University

Publisher

World Scientific Pub Co Pte Lt

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

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