RESEARCH ARTICLE
Mathematical analysis on MHD Prandtl‐Eyring nanofluid
new mass flux conditions
Khalil Ur Rehman
1
| Muhammad Awais
2
| Arif Hussain
2
| Nabeela Kousar
1
|
Muhammad Yousaf Malik
2
1
Department of Mathematics, Air
University, Islamabad, Pakistan
2
Department of Mathematics, Quaid‐i‐
Azam University, Islamabad, Pakistan
Correspondence
Khalil Ur Rehman, Department of
Mathematics, Air University, PAF
Complex E‐9, Islamabad 44000, Pakistan.
Email: krehman@math.qau.edu.pk
MOS Classification: 76D10; 34B05; 65L12
A speculative investigation has been presented to explore the salient features of
magnetohydrodynamic (MHD) Prandtl‐Eyring nanofluid over stretching surface.
Effects of Navier slip and convective boundary conditions are included in flow
configuration. The effects of higher order chemical reactions along with Nield
conditions are assumed in the concentration of nanoparticles. The mathematical
modelling of the said flow problem accomplished the nonlinear partial differen-
tial equations along with appropriate boundary conditions. The nondimensional
form of governing problem is yielded with the aid of similarity variables. The
pivotal physical quantities, ie, velocity, temperature, and concentration (in non-
dimensional form), within boundary layer region are computed with shooting
technique. The physical significance of flow controlling parameters on velocity,
temperature, and concentration is illustrated through graphs. Additionally,
thermophysical aspects of fluid near stretching surface (wall friction factor, wall
heat flux, and wall mass flux) are instantiated graphically. A comparison of the
current solution with reported data is established to validate the accuracy of
adapted procedure. It is observed that the current findings agree with existing
data. This led to confidence on adapted numerical procedure.
KEYWORDS
convective and Nield boundary conditions, higher order chemical reactions, MHD, nanofluid,
Prandtl‐Eyring fluid, slip flow
1 | INTRODUCTION
Nanofluid is a recently developed fluid that comprises a base fluid along with the nanoparticles of metals. The major
concern of suspending nanoparticles into base fluid is to enlarge the capability of heat conductance, because mostly
the traditionally utilized fluids for the heat transfer are less ability of heat conductance. Before the invention of
nanofluid, a lot of experiment had been performed like geometry of problem has been changed or metallic particles
of milli or micro size are inserted, but the desired results are not achieved. Then Choi et al
1,2
performed the successful
experiment by adding nanoparticles in base fluid and surprisingly found that the nanofluids have much times larger
capability of heat than their corresponding base fluids. This is considered one of the significant advancement of present
day research, which drives the next major industrial revolution of this century. Over the last two decades, analysis of
nanofluid flow experiences great enlargement and becomes the subject of differentiation because of widespread uses
in almost every aspect of life; for example, the nanofluids are utilized as a coolant in many processes, namely, vehicles
Received: 13 February 2018
DOI: 10.1002/mma.5319
Math Meth Appl Sci. 2018;1–15. © 2018 John Wiley & Sons, Ltd. wileyonlinelibrary.com/journal/mma 1