Slip effects on nanofluid flow over a nonlinear permeable stretching surface with chemical reaction

2015 ◽  
Vol 230 (14) ◽  
pp. 2473-2482 ◽  
Author(s):  
Kalidas Das ◽  
Tanmoy Chakraborty ◽  
Prabir Kumar Kundu
Keyword(s):  
Chemical Reaction ◽  
Skin Friction Coefficient ◽  
Point Of View ◽  
Dimensionless Temperature ◽  
Physical Parameters ◽  
Stretching Surface ◽  
Nanofluid Flow ◽  
Physical Point ◽  
Order Chemical Reaction ◽  
First Order Chemical Reaction

In this study, heat and mass transfer characteristics of the magnetohydrodynamic nanofluid flow over a radiating nonlinear permeable stretching surface are studied. The flow considered here is under both the hydrodynamic and thermal slip conditions in presence of first-order chemical reaction. The resulting governing equations are transformed into a system of nonlinear ordinary differential equations by applying a suitable similarity transformation and then solved numerically. A parametric study, of the physical parameters, is conducted and a representative set of numerical results for the skin friction coefficient, the Nusselt number and the local Sherwood number are tabulated. Graphical results for dimensionless temperature, velocity and concentration are presented and discussed in details from the physical point of view.

scholarly journals Radiative Magnetohydrodynamics Casson Nanofluid Flow and Heat and Mass Transfer past on Nonlinear Stretching Surface

2021 ◽  
Author(s):  
Gurrala Thirupathi ◽  
Kamatam Govardhan ◽  
Ganji Narender
Keyword(s):  
Differential Equations ◽  
Velocity Slip ◽  
Convective Boundary Condition ◽  
Skin Friction Coefficient ◽  
Physical Parameters ◽  
Stretching Surface ◽  
Nanofluid Flow ◽  
Convective Boundary ◽  
Casson Nanofluid ◽  
Order Four

The magnetohydrodynamics (MHD) stagnation point Casson nanofluid flow towards stretching surface with velocity slip and convective boundary condition has been investigated in this article. Effects of thermal radiation, viscous dissipation, heat source and chemical reaction have also been incorporated. Using appropriate similarity transformation Partial Differential Equations (PDEs) are converted into Ordinary Differential Equations (ODEs) and shooting technique along with Adams–Moulton method of order four has been used to obtain the numerical results. Different physical parameters effects on velocity, temperature and concentration of nanofluid flow have been presented graphically and discussed in detail. Numerical values of the skin friction coefficient, Nusselt number and Sherwood number are also and discussed.

On 3D Prandtl nanofluid flow with higher-order chemical reaction

2020 ◽  
pp. 095440622097542
Author(s):  
Mohamed R Eid ◽  
Fazle Mabood ◽  
Kasseb L Mahny
Keyword(s):  
Chemical Reaction ◽  
Nonlinear Differential Equations ◽  
Three Dimensional ◽  
Skin Friction Coefficient ◽  
Nanofluid Flow ◽  
Order Chemical Reaction ◽  
Layer Analysis ◽  
Complete Discussion ◽  
Field Lines ◽  
Magnetic Strength

In this paper, the boundary layer analysis of three-dimensional Prandtl nanofluid flow over a convectively heated sheet in a porous material is addressed. Nonlinear radiation and high-order chemical reaction analysis are featured in this work. Nonlinear differential equations representing flow expressions are numerically solved by shooting technique. Features of Brownian motion and thermophoresis accounting for nanoparticle diffusion are taken into account. Then, a complete discussion of the influences of the flow regime on several thermofluidic parameters is presented. The outcome of the present study is that velocity field lines are grown due to the strengthening of Prandtl fluid numbers [Formula: see text] and [Formula: see text] while a reverse trend takes place for temperature profile. Furthermore, it is shown that when the magnetic strength is improved, the skin friction coefficient and heat transfer rate triggers considerable evolution. The obtained results of this model closely match with those available in the literature as a limiting situation.

scholarly journals Numerical study on flow past an oscillating plate with variable temperature and uniform mass diffusion under chemical reaction

2014 ◽  
Vol 19 (1) ◽  
pp. 181-193
Author(s):  
A.R. Vijayalakshmi ◽  
M. Selvajayanthi
Keyword(s):  
Chemical Reaction ◽  
Numerical Study ◽  
Variable Temperature ◽  
Mass Diffusion ◽  
Physical Parameters ◽  
Grashof Number ◽  
First Order ◽  
Flow Past ◽  
Order Chemical Reaction ◽  
First Order Chemical Reaction

Abstract An numerical study on an unsteady flow past an oscillating semi-infinite vertical plate with variable temperature and uniform mass diffusion under the influence of a first order chemical reaction has been carried out. The dimensionless governing equations are solved by an unconditionally stable and fast converging implicit finite difference scheme. The effects of velocity and temperature for different physical parameters such as the chemical reaction parameter, thermal Grashof number, mass Grashof number and time are analysed. It is observed that due to the presence of first order chemical reaction, the velocity increases during a generative reaction and decreases in a destructive reaction

Interfacial mass transfer in turbulent flow accompanied by irreversible first order chemical reaction

1979 ◽  
Vol 44 (5) ◽  
pp. 1388-1396
Author(s):  
Václav Kolář ◽  
Zdeněk Brož
Keyword(s):  
Mass Transfer ◽  
Turbulent Flow ◽  
Chemical Reaction ◽  
Experimental Results ◽  
Theoretical Concepts ◽  
First Order ◽  
Order Chemical Reaction ◽  
Interfacial Mass Transfer ◽  
First Order Chemical Reaction

Relations describing the mass transfer accompanied by an irreversible first order chemical reaction are derived, based on the formerly published general theoretical concepts of interfacial mass transfer. These relations are compared with experimental results taken from literature.

EMHD time-dependant tangent hyperbolic nanofluid flow by a convective heated Riga plate with chemical reaction

2018 ◽  
Vol 233 (4) ◽  
pp. 776-786 ◽  
Author(s):  
A Mahdy ◽  
GA Hoshoudy
Keyword(s):  
Boundary Condition ◽  
Brownian Motion ◽  
Skin Friction ◽  
Chemical Reaction ◽  
Slip Boundary Condition ◽  
Negative Influence ◽  
Skin Friction Coefficient ◽  
Physical Parameters ◽  
Riga Plate ◽  
Linear Differential

The present exploration addresses the boundary layer electro-magnetohydrodynamic (EMHD) flow of time-dependant non-Newtonian tangent hyperbolic nanofluid that is electrically conducting past a Riga surface with variable thickness and slip boundary condition. Configuration flow modeling is deduced considering chemical reaction and heat generation/absorption with the impacts of Brownian motion and thermophoresis. Also a newly proposed boundary condition with zero mass flux has been presented in the current contribution. Numerical solution of the governing non-linear differential equations is presented by considering the shooting technique. Graphical illustrations pointing out the aspects of distinct physical parameters on the non-Newtonian nanofluid velocity, temperature and concentration fields are introduced. From the computational results, the concentration distribution gives a decreasing function of the chemical reaction and Brownian motion parameters. Higher values of shape parameter yield a negative influence on the mechanical properties of the surface. The Hartmann number leads to maximize both of velocity field and skin friction coefficient. Additionally, numerical computed values of the skin friction, local Nusselt and Sherwood numbers are depicted with the needful discussion.

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