Significance of variable fluid properties on hybrid nanoliquid flow in a micro-annulus with quadratic convection and quadratic thermal radiation: Response surface methodology

2021 ◽  
Vol 124 ◽  
pp. 105264
Author(s):  
K. Thriveni ◽  
B. Mahanthesh
Keyword(s):  
Response Surface Methodology ◽  
Thermal Radiation ◽  
Response Surface ◽  
Radiation Response ◽  
Variable Fluid Properties ◽  
Fluid Properties

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

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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