scholarly journals Transient MHD free convective chemically reacting flow over a moving hot vertical porous plate with heat generation/absorption, thermal radiation, viscous dissipation, and oscillating suction and free stream velocity effects

2019 ◽  
Keyword(s):  
Thermal Radiation ◽  
Viscous Dissipation ◽  
Heat Generation ◽  
Free Stream ◽  
Porous Plate ◽  
Stream Velocity ◽  
Reacting Flow ◽  
Vertical Porous Plate ◽  
Chemically Reacting ◽  
Chemically Reacting Flow

Magnetohydrodynamics (MHD) Heat and Mass Transfer of Casson Fluid Flow Past a Semi-Infinite Vertical Plate with Thermophoresis Effect: Spectral Relaxation Analysis

2018 ◽  
Vol 389 ◽  
pp. 18-35
Author(s):  
Bidemi O. Falodun ◽  
C. Onwubuoya ◽  
F.H. Awoniran Alamu
Keyword(s):  
Thermal Radiation ◽  
Viscous Dissipation ◽  
Heat Generation ◽  
Porous Plate ◽  
Great Influence ◽  
Thermal Engineering ◽  
Concentration Profiles ◽  
Local Skin ◽  
Flow Equations ◽  
Spectral Relaxation

In this paper, boundary layer flow of non-Newtonian Casson fluids past a semi-infinite porous plate in the presence of thermal radiation, viscous dissipation and heat generation is explored. Fluids of this type act as solid elastic and they are very important in food technology, biological science, etc. The flow took place over a semi-infinite vertical porous plate. The presence of viscous dissipation in the flow equations plays a significant role on flows having high viscosity such as polymers and oils. Thermal radiation and heat generation plays a decisive role in the design of many advanced energy conversion system which operates at higher temperature. Hence, the present study is useful in food processing industries and thermal engineering processes. The flows governing equations are numerically solved with spectral relaxation method (SRM). SRM is an iterative procedure that employs the Gauss-siedel type of relaxation approach to linearize and decoupled the system of coupled differential equations. The influence of controlling parameters on velocity, temperature and concentration profiles are plotted in graphs. Furthermore, numerical computations of the local skin friction, local Nusselt number and local sherwood number are presented in tabular form. Results revealed that the presence of the thermophoresis in the concentration equation has great influence on the velocity and concentration profiles because increasing the thermophoresis parameter intensifies the velocity and concentration profiles.

scholarly journals Unsteady Free Convective and Mass Transfer Flow through Porous Medium in Rotating System

1970 ◽  
Vol 29 ◽  
pp. 107-115
Author(s):  
D Sarkar ◽  
S Mukherjee ◽  
S Mukherjee
Keyword(s):  
Mass Transfer ◽  
Porous Medium ◽  
Free Stream ◽  
Porous Plate ◽  
Stream Velocity ◽  
Rotating System ◽  
Free Convective Flow ◽  
Vertical Porous Plate ◽  
Flow Through ◽  
Transfer Flow

An exact solution of unsteady free convective and mass transfer flow through porous medium bounded by a vertical porous plate with an oscillating free stream velocity is obtained. The entire system rotates about an axis normal to the plate. Existence of multiple Ekman boundary layer modified by the presence of free convection and mass transfer is observed near the neighbourhood of plate wall. Key words: Porous medium; rotating system; free convective flow; mass transfer. GANIT J. Bangladesh Math. Soc. (ISSN 1606-3694) 29 (2009) 107-115  DOI: http://dx.doi.org/10.3329/ganit.v29i0.8520 

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