PHYSICAL EFFECTS OF VARIABLE FLUID PROPERTIES ON GASEOUS SLIP-FLOW THROUGH A MICRO-CHANNEL HEAT SINK

The present study investigates the radiation effects in flow through porous medium over a permeable rotating disk with velocity slip and temperature jump. Fluid properties density(ρ), viscosity(μ), and thermal conductivity(κ)are taken to be dependent on temperature. Particular case considering these fluid properties’ constant is also discussed. The governing partial differential equations are converted into nonlinear normal differential equation using similarity alterations. Transformed system of equations is solved numerically by using Runge-Kutta method with shooting technique. Effects of various parameters such as porosity parameterK, suction parameterWs, rotational Reynolds number Re, Knudsen number Kn, Prandtl number Pr, radiation parameterN, and relative temperature difference parameterεon velocity profiles along radial, tangential, and axial direction and temperature distribution are investigated for both variable fluid properties and constant fluid properties. Results obtained are analyzed and depicted through graphs and table.

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Comment on the paper “Impact of thermal radiation on MHD slip flow over a flat plate with variable fluid properties, by K. Das, Heat and Mass Transfer (2012) 48:767–778”

Heat and Mass Transfer ◽

10.1007/s00231-015-1522-6 ◽

2015 ◽

Vol 51 (8) ◽

pp. 1203-1204 ◽

Cited By ~ 1

Author(s):

Asterios Pantokratoras

Keyword(s):

Mass Transfer ◽

Thermal Radiation ◽

Flat Plate ◽

Heat And Mass Transfer ◽

Slip Flow ◽

Variable Fluid Properties ◽

Fluid Properties

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MHD boundary layer slip flow and radiative nonlinear heat transfer over a flat plate with variable fluid properties and thermophoresis

Alexandria Engineering Journal ◽

10.1016/j.aej.2015.08.007 ◽

2015 ◽

Vol 54 (4) ◽

pp. 941-953 ◽

Cited By ~ 14

Author(s):

S.K. Parida ◽

S. Panda ◽

B.R. Rout

Keyword(s):

Heat Transfer ◽

Boundary Layer ◽

Flat Plate ◽

Slip Flow ◽

Nonlinear Heat Transfer ◽

Variable Fluid Properties ◽

Mhd Boundary Layer ◽

Fluid Properties

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Heat transfer characteristics of gaseous slip flow in a micro-channel

Journal of Mechanical Science and Technology ◽

10.1007/s12206-010-0923-1 ◽

2010 ◽

Vol 24 (12) ◽

pp. 2577-2585 ◽

Cited By ~ 2

Author(s):

Chungpyo Hong ◽

Yutaka Asako ◽

Koichi Suzuki ◽

Yoon-Eui Nahm

Keyword(s):

Heat Transfer ◽

Slip Flow ◽

Micro Channel ◽

Heat Transfer Characteristics ◽

Transfer Characteristics ◽

Gaseous Slip Flow

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Variable Fluid Properties and Thermal Radiation Effects on Natural Convection Couette Flow through a Vertical Porous Channel

Journal of Advances in Mathematics and Computer Science ◽

10.9734/jamcs/2019/v31i130100 ◽

2019 ◽

pp. 1-17

Author(s):

Abiodun O. Ajibade ◽

Yusuf A. Bichi

Keyword(s):

Natural Convection ◽

Thermal Radiation ◽

Couette Flow ◽

Fluid Velocity ◽

Heat Diffusion ◽

Porous Channel ◽

Flow Equations ◽

Variable Fluid Properties ◽

Fluid Properties ◽

Flow Through

The present article investigates natural convection Couette flow through a vertical porous channel due to combined effects of thermal radiation and variable fluid properties. The fluid considered in the model is of an optically dense with all its physical properties assumed constant except for its viscosity and thermal conductivity which are temperature dependent. The flow equations are simplified using non-linear Rosseland heat diffusion and as a consequence it resulted to high non-linearity of the flow equations. Adomian decomposition method (ADM) is used to solve the emanating equations and the influences of the essential controlling physical parameters involved are presented on graphs, tables and were discussed. In the course of investigation; it was found that both the fluid velocity and its temperature within the channel were seen to increase with growing thermal radiation parameter while the fluid’s velocity and temperature were observed to descend with increase in thermal conduction of the fluid. Similarly; the fluid velocity was found to increase with decrease in the fluid viscosity. To validate the accuracy of the present investigation; the results obtained here in have been compared with a published work where good agreement was found.

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