Impact of viscosity variation and micro rotation on oblique transport of Cu-water fluid

Rabil Tabassum; R Mehmood; S Nadeem

doi:10.1016/j.jcis.2017.04.060

Impact of viscosity variation and micro rotation on oblique transport of Cu-water fluid

J Colloid Interface Sci. 2017 Sep 1:501:304-310. doi: 10.1016/j.jcis.2017.04.060. Epub 2017 Apr 24.

Authors

Rabil Tabassum¹, R Mehmood², S Nadeem³

Affiliations

¹ Department of Mathematics, Faculty of Natural Sciences, HITEC University, Taxila Cantt, Pakistan.
² Department of Mathematics, Faculty of Natural Sciences, HITEC University, Taxila Cantt, Pakistan. Electronic address: rashid.mehmood@hitecuni.edu.pk.
³ Department of Mathematics, Quaid I Azam University Islamabad, Pakistan.

PMID: 28460223
DOI: 10.1016/j.jcis.2017.04.060

Abstract

This study inspects the influence of temperature dependent viscosity on Oblique flow of micropolar nanofluid. Fluid viscosity is considered as an exponential function of temperature. Governing equations are converted into dimensionless forms with aid of suitable transformations. Outcomes of the study are shown in graphical form and discussed in detail. Results revealed that viscosity parameter has pronounced effects on velocity profiles, temperature distribution, micro-rotation, streamlines, shear stress and heat flux. It is found that viscosity parameter enhances the temperature distribution, tangential velocity profile, normal component of micro-rotation and shear stress at the wall while it has decreasing effect on tangential component of micro-rotation and local heat flux.

Keywords: Micropolar fluid; Nanoparticles; Oblique flow; Variable viscosity.