Passive control of magneto-nanomaterials transient flow subject to non-linear thermal radiation

Present investigation is concerned with mixed convection flow of Williamson nanoliquid over an unsteady slandering stretching sheet. Aspects of non-linear thermal radiation, Brownian diffusion and thermophoresis effects are addressed. Non-linear stretching surface of varying thickness induce the flow. Novel features of combined zero mass flux and convective conditions are accounted. Use of appropriate transformations results into the non-linear ODEs. Computations for the convergent solutions are provided. Graphs are designed for interpretations to quantities. Nusselt number and surface drag are computationally inspected. Our computed results indicate that attributes of nanoparticles and non-linear thermal radiation enhance the temperature distribution.

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Effect of Thermal Radiation on Magneto-Convection of a Micropolar Nanoliquid towards a Non-Linear Stretching Surface with Convective Boundary

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i4.10.21030 ◽

2018 ◽

Vol 7 (4.10) ◽

pp. 417

Author(s):

K. Jagan ◽

S. Sivasankaran ◽

M. Bhuvaneswari ◽

S. Rajan

Keyword(s):

Differential Equations ◽

Thermal Radiation ◽

Ordinary Differential Equations ◽

Convective Boundary Condition ◽

Convection Flow ◽

Stretching Surface ◽

Convective Boundary ◽

Linear Ordinary Differential Equations ◽

Boundary Parameter ◽

Non Linear

The objective of this paper is to analyze the effect of thermal radiation on MHD mixed convection flow of a micropolar nanoliquid towards a non-linear stretching surface with convective boundary condition. The governing equations are converted into non-linear ordinary differential equations by using suitable similarity transformations. The homotopy analysis method is used for solving the non-linear ordinary differential equations. The temperature profiles increase due to increase in thermal radiation parameter. The microrotation profile increases when boundary parameter is increased. Also, the skin friction coefficient and local Nusselt are plotted for various parameters.

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Double-diffusive mixed convection flow towards a convectively heated stretching sheet with non-linear thermal radiation

International Journal of Heat and Technology ◽

10.18280/ijht.360331 ◽

2018 ◽

Vol 36 (3) ◽

pp. 1015-1024 ◽

Cited By ~ 1

Author(s):

Mrutyunjay Das ◽

Bhupesh Mahatha ◽

Raj Nandkeolyar ◽

Subharthi Sarkar

Keyword(s):

Mixed Convection ◽

Thermal Radiation ◽

Stretching Sheet ◽

Convection Flow ◽

Mixed Convection Flow ◽

Non Linear ◽

Double Diffusive

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Effects of Thermal Radiation on Mixed Convection Flow of a Micropolar Fluid from an Unsteady Stretching Surface with Viscous Dissipation and Heat Generation/Absorption

International Journal of Chemical Engineering ◽

10.1155/2016/8190234 ◽

2016 ◽

Vol 2016 ◽

pp. 1-10 ◽

Cited By ~ 4

Author(s):

Khilap Singh ◽

Manoj Kumar

Keyword(s):

Mixed Convection ◽

Thermal Radiation ◽

Heat Generation ◽

Micropolar Fluid ◽

Numerical Solutions ◽

Convection Flow ◽

Mixed Convection Flow ◽

Stretching Surface ◽

Local Skin ◽

Unsteady Mixed Convection

A numerical model is developed to examine the effects of thermal radiation on unsteady mixed convection flow of a viscous dissipating incompressible micropolar fluid adjacent to a heated vertical stretching surface in the presence of the buoyancy force and heat generation/absorption. The Rosseland approximation is used to describe the radiative heat flux in the energy equation. The model contains nonlinear coupled partial differential equations which have been converted into ordinary differential equation by using the similarity transformations. The dimensionless governing equations for this investigation are solved by Runge-Kutta-Fehlberg fourth fifth-order method with shooting technique. Numerical solutions are then obtained and investigated in detail for different interesting parameters such as the local skin-friction coefficient, wall couple stress, and Nusselt number as well as other parametric values such as the velocity, angular velocity, and temperature.

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Unsteady Flow and Heat Transfer of a MHD Micropolar Fluid Over a Porous Stretching Sheet in the Presence of Thermal Radiation

Journal of Mechanics ◽

10.1017/jmech.2013.33 ◽

2013 ◽

Vol 29 (3) ◽

pp. 559-568 ◽

Cited By ~ 5

Author(s):

G. C. Shit ◽

R. Haldar ◽

A. Sinha

Keyword(s):

Heat Transfer ◽

Boundary Layer ◽

Differential Equations ◽

Thermal Radiation ◽

Boundary Layer Flow ◽

Micropolar Fluid ◽

Stretching Sheet ◽

Flow And Heat Transfer ◽

Non Linear ◽

Layer Flow

AbstractA non-linear analysis has been made to study the unsteady hydromagnetic boundary layer flow and heat transfer of a micropolar fluid over a stretching sheet embedded in a porous medium. The effects of thermal radiation in the boundary layer flow over a stretching sheet have also been investigated. The system of governing partial differential equations in the boundary layer have reduced to a system of non-linear ordinary differential equations using a suitable similarity transformation. The resulting non-linear coupled ordinary differential equations are solved numerically by using an implicit finite difference scheme. The numerical results concern with the axial velocity, micro-rotation component and temperature profiles as well as local skin-friction coefficient and the rate of heat transfer at the sheet. The study reveals that the unsteady parameter S has an increasing effect on the flow and heat transfer characteristics.

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