Thermal and velocity slip effects in mixed convection flow of magnetized ceramic nanofluids over a thin needle with variable physical properties

Abstract

The impact of thermal and velocity slips on mixed convection magnetohydrodynamic flow of ceramic nanofluids past a thin needle with variable physical properties has been investigated in the present study. Numeric computation of nonlinear differential expressions has been executed by Runge–Kutta Fehlberg-quadrature method for varying physical parameters. The study is more important in contributing to medicine and engineering. Fluid velocity and temperature exhibit opposite behavior in relation to amplifying Hartmann number. The rise in slip parameters causes the shrinkage of thermal boundary layer which in turn yields significantly greater heat transfer rate. Flow velocity is an increasing function of Richardson number. Higher surface viscous drag is attained for $CuO$ suspension while least of that is obtained for $Ti{O}_2$ suspension.

KEYWORDS:

• Ceramic nanofluids
• mixed convection flow
• thin needle
• thermal and velocity slips
• numerical solution

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

The authors extend their appreciation to the Deanship of Scientific Research at King Khalid University, Abha, Saudi Arabia for funding this work through research groups program under grant number R.G.P-2/76/42.