https://doi.org/10.1140/epjp/i2017-11753-8
Regular Article
Theoretical investigation of the doubly stratified flow of an Eyring-Powell nanomaterial via heat generation/absorption
1
Department of Mathematics, Quaid-I-Azam University, 45320, 44000, Islamabad, Pakistan
2
Nonlinear Analysis and Applied Mathematics (NAAM) Research Group, Department of Mathematics, Faculty of Science, King Abdulaziz University, P. O. Box 80257, 21589, Jeddah, Saudi Arabia
3
Heriot Watt University, Edinburgh Campus, EH14 4AS, Edinburgh, UK
* e-mail: mk42@hw.ac.uk
Received:
2
October
2017
Accepted:
11
October
2017
Published online:
27
November
2017
The mixed convective flow of an Eyring-Powell nanomaterial in a doubly stratified medium is addressed in this paper. The stretching surface has varying thickness. The nanofluid model given by Buongiorno is utilized in the formulation of energy and concentration expressions. Heat generation is also retained. Ordinary differential systems are obtained by utilizing the transformations procedure. Homotopy series solutions containing exponentially functions are developed. Significant characteristics of influential variables for velocity, temperature, nanoparticle concentration, skin friction coefficient and Nusselt and Sherwood numbers are reported through graphs and tables. It is found that stratification phenomenon leads to a decay in temperature and nanoparticle concentration.
© The Author(s), 2017
