scholarly journals Discussion: “Laminar Flow Heat Transfer and Fluid Flow for Liquids With Temperature-Dependent Viscosity” (Test, F. L., 1968, ASME J. Heat Transfer, 90, pp. 385–392)

1968 ◽  
Vol 90 (4) ◽  
pp. 393-393
Author(s):  
L. C. Witte ◽  
J. E. Cox
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Laminar Flow ◽  
Temperature Dependent ◽  
Temperature Dependent Viscosity ◽  
Flow Heat ◽  
Dependent Viscosity

Unsteady Magnetohydrodynamic Mixed Convective Flow of a Reactive Casson Fluid in a Vertical Channel Filled with a Porous Medium

2021 ◽  
Vol 408 ◽  
pp. 33-49
Author(s):  
Lazarus Rundora
Keyword(s):  
Magnetic Field ◽  
Heat Transfer ◽  
Porous Medium ◽  
Fluid Flow ◽  
Vertical Channel ◽  
Casson Fluid ◽  
Convection Flow ◽  
Temperature Dependent ◽  
Temperature Dependent Viscosity ◽  
Dependent Viscosity

This article analyses the thermal decomposition in an unsteady MHD mixed convection flow of a reactive, electrically conducting Casson fluid within a vertical channel filled with a saturated porous medium and the influence of the temperature dependent properties on the flow. The fluid is assumed to be incompressible with the viscosity coefficient varying exponentially with temperature. The flow is subjected to an externally applied uniform magnetic field. The exothermic chemical kinetics inherent in the flow system give rise to heat dissipation. A technique based on a semi-discretization finite difference scheme and the shooting method is applied to solve the dimensionless governing equations. The effects of the temperature dependent viscosity, the magnetic field and other important parameters on the velocity and temperature profiles, the wall shear stress and the wall heat transfer rate are presented graphically and discussed quantitatively and qualitatively. The fluid flow model revealed flow characteristics that have profound ramifications including the increased heat transfer enhancement attributes of the reactive temperature dependent viscosity Casson fluid flow.

Laminar Flow Heat Transfer and Fluid Flow for Liquids With Temperature-Dependent Viscosity

1968 ◽  
Vol 90 (4) ◽  
pp. 385-392 ◽  
Author(s):  
F. L. Test
Keyword(s):  
Heat Transfer ◽  
Analytical Approach ◽  
Experimental Approach ◽  
Hot Wire ◽  
Temperature Dependent ◽  
Temperature Dependent Viscosity ◽  
Flow Heat ◽  
Dependent Viscosity ◽  
Energy Equations

An analytical and experimental study is made of liquids with a temperature dependent viscosity. The analytical approach is a numerical solution of the momentum, continuity, and energy equations. The significance of various terms in the equations is considered. The experimental approach involves the use of hot wire techniques for the determination of velocity profiles. Correlations are obtained for the Nusselt number and friction factor.

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