Simultaneous influence of thermo-diffusion and diffusion-thermo on non-Newtonian hyperbolic tangent magnetised nanofluid with Hall current through a nonlinear stretching surface

Pramana ◽  
2019 ◽  
Vol 93 (6) ◽  
Author(s):  
M M Bhatti ◽  
Majeed A Yousif ◽  
S R Mishra ◽  
A Shahid
Keyword(s):  
Hall Current ◽  
Stretching Surface ◽  
Hyperbolic Tangent ◽  
Nonlinear Stretching ◽  
And Diffusion ◽  
Simultaneous Influence

Effects of Viscoelastic Oil-Based Nanofluids on a Porous Nonlinear Stretching Surface with Variable Heat Source/Sink

2018 ◽  
Vol 387 ◽  
pp. 260-272
Author(s):  
Christian John Etwire ◽  
Ibrahim Yakubu Seini ◽  
Rabiu Musah ◽  
Oluwole Daniel Makinde
Keyword(s):  
Boundary Layer ◽  
Differential Equations ◽  
Heat Source ◽  
Ordinary Differential Equations ◽  
Layer Thickness ◽  
Fourth Order ◽  
Boundary Layer Thickness ◽  
Stretching Surface ◽  
Variable Heat ◽  
Nonlinear Stretching

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.

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

2019 ◽  
Vol 94 (8) ◽  
pp. 085704 ◽  
Author(s):  
Tasawar Hayat ◽  
Arsalan Aziz ◽  
Taseer Muhammad ◽  
Ahmed Alsaedi
Keyword(s):  
Stretching Surface ◽  
Nanofluid Flow ◽  
Nonlinear Stretching

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

2016 ◽  
Vol 30 (2) ◽  
pp. 509-518 ◽  
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

Partial slip effects in flow over nonlinear stretching surface

2015 ◽  
Vol 36 (11) ◽  
pp. 1513-1526 ◽  
Author(s):  
T. Hayat ◽  
M. Imtiaz ◽  
A. Alsaedi
Keyword(s):  
Partial Slip ◽  
Stretching Surface ◽  
Slip Effects ◽  
Nonlinear Stretching

scholarly journals Finite Element Method Solution of Boundary Layer Flow of Powell-Eyring Nanofluid over a Nonlinear Stretching Surface

2019 ◽  
Vol 2019 ◽  
pp. 1-16 ◽  
Author(s):  
Wubshet Ibrahim ◽  
Gosa Gadisa
Keyword(s):  
Boundary Layer ◽  
Finite Element Method ◽  
Chemical Reaction ◽  
Transfer Rate ◽  
Reaction Rate ◽  
Stretching Surface ◽  
Chemical Reaction Rate ◽  
Heat Generation Or Absorption ◽  
Layer Flow ◽  
Nonlinear Stretching

The nonlinear convective flow of Eyring-Powell nanofluid using Catteneo-Christov model with heat generation or absorption term and chemical reaction rate over nonlinear stretching surface is analyzed. The simultaneous nonlinear partial differential equations governing the boundary layer flow are transformed to the corresponding nonlinear ordinary differential equations using similarity solution and then solved using Galerkin finite element method (GFEM). The impacts of pertinent governing parameters like Brownian diffusion, thermophoresis, mixed convection, heat generation or absorption, chemical reaction rate, Deborah numbers, Prandtl number, magnetic field parameter, Lewis number, nonlinear stretching sheet, and Eyring-Powell fluid parameters on velocity field, temperature, and nanoparticle concentration are given in both figures and tabular form. The result shows that the rise in chemical reaction rate will improve mass transfer rate and reduce heat transfer rate and local buoyancy parameter has quit opposite effect. The attributes of local skin friction coefficient, Nusselt number, and Sheer wood number are investigated and validated with existing literatures.

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