Radiation effects on the mixed convection flow induced by an inclined stretching cylinder with non-uniform heat source/sink.

Tasawar Hayat,Saleem Asghar,Ahmed Alsaedi,Sajid Qayyum,Zhong-Ke Gao

doi:10.1371/journal.pone.0175584

Tasawar Hayat, Saleem Asghar + Show 3 more

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https://doi.org/10.1371/journal.pone.0175584

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Abstract

This study investigates the mixed convection flow of Jeffrey liquid by an impermeable inclined stretching cylinder. Thermal radiation and non-uniform heat source/sink are considered. The convective boundary conditions at surface are imposed. Nonlinear expressions of momentum, energy and concentration are transformed into dimensionless systems. Convergent homotopic solutions of the governing systems are worked out by employing homotopic procedure. Impact of physical variables on the velocity, temperature and concentration distributions are sketched and discussed. Numerical computations for skin friction coefficient, local Nusselt and Sherwood numbers are carried out. It is concluded that velocity field enhances for Deborah number while reverse situation is observed regarding ratio of relaxation to retardation times. Temperature and heat transfer rate are enhanced via larger thermal Biot number. Effect of Schmidt number on the concentration and local Sherwood number is quite reverse.

Highlights

Flow analyses of non-Newtonian liquids have significantly attracted the attention of researchers and scientists during the past few decades [1,2,3,4,5]
All non-Newtonian materials depend on their effects in shear which cannot be predicted by a single constitutive relationship
This fact of non-Newtonian materials is different than the viscous fluids

Summary

Introduction

Flow analyses of non-Newtonian liquids have significantly attracted the attention of researchers and scientists during the past few decades [1,2,3,4,5]. All non-Newtonian materials depend on their effects in shear which cannot be predicted by a single constitutive relationship. This fact of non-Newtonian materials is different than the viscous fluids. In general the non-Newtonian materials have been classified into differential, integral and rate types. Available information witnesses that much consideration in the past has been given to the flows of subclasses of differential type materials.

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