scholarly journals The Effect of Suction/Injection on Free Convection in a Micropolar Fluid Saturated Porous Medium under Convective Boundary Condition

2015 ◽  
Vol 127 ◽  
pp. 235-243 ◽  
Author(s):  
Ch. RamReddy ◽  
T. Pradeepa
Keyword(s):  
Boundary Condition ◽  
Porous Medium ◽  
Free Convection ◽  
Micropolar Fluid ◽  
Saturated Porous Medium ◽  
Convective Boundary Condition ◽  
Convective Boundary ◽  
Fluid Saturated Porous Medium

scholarly journals Spectral Quasi-linearization Method for Homogeneous-Heterogeneous Reactions on Nonlinear Convection Flow of Micropolar Fluid Saturated Porous Medium with Convective Boundary Condition

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Chetteti RamReddy ◽  
Teegala Pradeepa
Keyword(s):  
Boundary Condition ◽  
Porous Medium ◽  
Micropolar Fluid ◽  
Heterogeneous Reaction ◽  
Saturated Porous Medium ◽  
Mass Transfer Rate ◽  
Convective Boundary Condition ◽  
Convection Flow ◽  
Convective Boundary ◽  
Fluid Saturated Porous Medium

Abstract Based on the nonlinear variation of density with temperature (NDT) in the buoyancy term, the mixed convection flow along a vertical plate of a micropolar fluid saturated porous medium is considered. In addition, the effect of homogeneous-heterogeneous reaction and convective boundary condition has been taken into account. Using lie scaling group transformations, the similarity representation is attained for the system of partial differential equations, prior to being solved by a spectral quasilinearization method. The results show that in the presence of aiding and opposing flow situations, both the species concentration and mass transfer rate decreases when the strength of homogeneous and heterogeneous reaction parameters are enhanced.

Quadratic Convective Flow of a Micropolar Fluid along an Inclined Plate in a Non-Darcy Porous Medium with Convective Boundary Condition

2017 ◽  
Vol 6 (2) ◽  
Author(s):  
Ch. RamReddy ◽  
P. Naveen ◽  
D. Srinivasacharya
Keyword(s):  
Boundary Condition ◽  
Porous Medium ◽  
Differential Equations ◽  
Micropolar Fluid ◽  
Convective Flow ◽  
Convective Boundary Condition ◽  
Inclined Plate ◽  
Convective Boundary ◽  
Temperature Parameter ◽  
Mixed Convective Flow

AbstractThe objective of the present study is to investigate the effect of nonlinear variation of density with temperature and concentration on the mixed convective flow of a micropolar fluid over an inclined flat plate in a non-Darcy porous medium in the presence of the convective boundary condition. In order to analyze all the essential features, the governing non-dimensional partial differential equations are transformed into a system of ordinary differential equations using a local non-similarity procedure and then the resulting boundary value problem is solved using a successive linearisation method (SLM). By insisting the comparison between vertical, horizontal and inclined plates, the physical quantities of the flow and its characteristics are exhibited graphically and quantitatively with various parameters. An increase in the micropolar parameter and non-Darcy parameter tend to increase the skin friction and the reverse change is observed in wall couple stress, mass and heat transfer rates. The influence of the nonlinear concentration parameter is more prominent on all the physical characteristics of the present model, compared with that of nonlinear temperature parameter.

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