Mixed Convection Flow in a Vertical Micro-Annulus Having Temperature Dependent Viscosity: An Exact Solution

2018 ◽  
Vol 7 (5) ◽  
pp. 902-909
Author(s):  
Basant K. Jha ◽  
Babatunde Aina
Keyword(s):  
Exact Solution ◽  
Mixed Convection ◽  
Convection Flow ◽  
Mixed Convection Flow ◽  
Temperature Dependent ◽  
Temperature Dependent Viscosity ◽  
Dependent Viscosity

Steady Fully Developed Mixed Convection Flow in a Vertical Channel with Heat and Mass Transfer and Temperature-Dependent Viscosity: An Exact Solution

2019 ◽  
Vol 74 (3) ◽  
pp. 235-244 ◽  
Author(s):  
Basant K. Jha ◽  
Michael O. Oni
Keyword(s):  
Exact Solution ◽  
Mixed Convection ◽  
Variable Viscosity ◽  
Vertical Channel ◽  
Convection Flow ◽  
Mixed Convection Flow ◽  
Temperature Dependent ◽  
Temperature Dependent Viscosity ◽  
Viscosity Term ◽  
Dependent Viscosity

AbstractAn exact solution for mixed convection flow with temperature-dependent viscosity in a vertical channel subject to wall asymmetric heating and concentration is obtained. The momentum, concentration, and energy equations governing the flow configuration are derived and solved exactly by incorporating the variable viscosity term, which is assumed to exponentially decrease/increase with temperature difference into the momentum equation. The roles of governing parameters are depicted with the aid of tables and line graphs. Results show that buoyancy ratio parameter can bring about the occurrence of flow reversal at the walls. It is also found that heat transfer, total species rate, skin friction, and reverse flow occurrence are enhanced in the presence of temperature-dependent viscosity.

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