Analysis of homogeneous–heterogeneous reactions in a micropolar nanofluid past a nonlinear stretching surface: semi-analytical approach

The effect of variable heat source on viscoelastic fluid of CuO-oil based nanofluid over a porous nonlinear stretching surface is analyzed. The problem was modelled in the form of partial differential equations and transformed into a coupled fourth order ordinary differential equations by similarity techniques. It was further reduced to a system of first order ordinary differential equations and solved numerically using the fourth order Runge-Kutta algorithm with a shooting method. The results for various controlling parameters have been tabulated and the flow profiles graphically illustrated. The study revealed that the viscoelastic parameter has a decreasing effect on the magnitude of both the skin friction coefficient and the rate of heat transfer from the surface. It enhanced the momentum boundary layer thickness whilst adversely affecting the thermal boundary layer thickness.

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Active and passive controls of 3D nanofluid flow by a convectively heated nonlinear stretching surface

Physica Scripta ◽

10.1088/1402-4896/ab1307 ◽

2019 ◽

Vol 94 (8) ◽

pp. 085704 ◽

Cited By ~ 5

Author(s):

Tasawar Hayat ◽

Arsalan Aziz ◽

Taseer Muhammad ◽

Ahmed Alsaedi

Keyword(s):

Stretching Surface ◽

Nanofluid Flow ◽

Nonlinear Stretching

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Stagnation point flow of nanomaterial towards nonlinear stretching surface with melting heat

Neural Computing and Applications ◽

10.1007/s00521-016-2704-y ◽

2016 ◽

Vol 30 (2) ◽

pp. 509-518 ◽

Cited By ~ 6

Author(s):

T. Hayat ◽

Gulnaz Bashir ◽

M. Waqas ◽

A. Alsaedi ◽

M. Ayub ◽

...

Keyword(s):

Stagnation Point ◽

Stagnation Point Flow ◽

Stretching Surface ◽

Melting Heat ◽

Nonlinear Stretching

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Buoyancy and Radiation Effect on Stagnation Point Flow of Micropolar Nanofluid Along a Vertically Convective Stretching Surface

IEEE Transactions on Nanotechnology ◽

10.1109/tnano.2014.2363684 ◽

2015 ◽

Vol 14 (1) ◽

pp. 42-50 ◽

Cited By ~ 50

Author(s):

Rizwan Ul Haq ◽

S. Nadeem ◽

N. S. Akbar ◽

Z. H. Khan

Keyword(s):

Stagnation Point ◽

Radiation Effect ◽

Stagnation Point Flow ◽

Stretching Surface ◽

Micropolar Nanofluid

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Partial slip effects in flow over nonlinear stretching surface

Applied Mathematics and Mechanics ◽

10.1007/s10483-015-1999-7 ◽

2015 ◽

Vol 36 (11) ◽

pp. 1513-1526 ◽

Cited By ~ 20

Author(s):

T. Hayat ◽

M. Imtiaz ◽

A. Alsaedi

Keyword(s):

Partial Slip ◽

Stretching Surface ◽

Slip Effects ◽

Nonlinear Stretching

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Heat and mass transfer in 3-D MHD Williamson-Casson fluids flow over a stretching surface with non-uniform heat source/sink

Thermal Science ◽

10.2298/tsci160426107r ◽

2019 ◽

Vol 23 (1) ◽

pp. 281-293 ◽

Cited By ~ 3

Author(s):

Chakravarthula Raju ◽

Naramgari Sandeep ◽

Mohamed Ali ◽

Abdullah Nuhait

Keyword(s):

Mass Transfer ◽

Heat Source ◽

Heat And Mass Transfer ◽

Mass Transfer Rate ◽

Casson Fluid ◽

Heterogeneous Reactions ◽

Stretching Surface ◽

Flow Heat ◽

The Individual ◽

Source Sink

A mathematical model has been proposed for investigating the flow, heat, and mass transfer in Williamson and Casson fluid-flow over a stretching surface. For controlling the temperature and concentration fields we considered the space and temperature dependent heat source/sink and homogeneous-heterogeneous reactions, respectively. Numerical results are carried out for this study by using Runge-Kutta based shooting technique. The effects of governing parameters on the flow, heat and mass transfer are illustrated graphically. Also computed the skin-friction coefficients for axial and transverse directions along with the local Nusselt number. In most of the studies, homogeneous-heterogeneous profiles were reduced into a single concentration equation by assuming equal diffusion coefficients. For the physical relevance, without any assumptions we studied the individual behavior of the homogeneous-heterogeneous profiles. It is found that the rate of heat and mass transfer in Casson fluid is significantly large while equated with the heat and mass transfer rate of Williamson fluid.

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Biomathematical analysis for the carbon nanotubes effects in the stagnation point flow towards a nonlinear stretching sheet with homogeneous-heterogeneous reaction

Journal of Naval Architecture and Marine Engineering ◽

10.3329/jname.v17i1.33734 ◽

2020 ◽

Vol 17 (1) ◽

pp. 67-77

Author(s):

S. R. Reddisekhar Reddy ◽

P. Bala Anki Reddy

Keyword(s):

Carbon Nanotubes ◽

Stretching Sheet ◽

Heterogeneous Reaction ◽

Skin Friction Coefficient ◽

Heterogeneous Reactions ◽

Single Wall Carbon Nanotubes ◽

Published Data ◽

Physical Parameters ◽

Local Skin ◽

Nonlinear Stretching

The main objective of this paper is to study the homogeneous-heterogeneous reactions in magnetohydrodynamic flow due to a nonlinear stretching sheet. Analysis for single wall carbon nanotubes with water and pure blood are taken as the base fluids. The governing non-linear partial differential equations are transformed into ordinary which are solved numerically by utilizing the fourth order Runge-Kutta method with shooting technique. Graphical results have been presented for velocity profile, temperature, concentration, local skin friction coefficient and local Nusselt number profiles for various physical parameters of interest. Comparisons with previously published data are performed and the results are found to be excellent agreement.

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