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Paper Information

Journal:   JOURNAL OF APPLIED FLUID MECHANICS (JAFM)   2016 , Volume 9 , Number 6; Page(s) 2877 To 2885.
 
Paper: 

CHEMICAL REACTION EFFECTS ON AN UNSTEADY MHD MIXED CONVECTIVE AND RADIATIVE BOUNDARY LAYER FLOW OVER A CIRCULAR CYLINDER

 
 
Author(s):  POORNIMA T.*, SREENIVASULU P., BHASKAR REDDY N.
 
* DEPARTMENT OF MATHEMATICS (SAS),VIT UNIVERSITY, CHENNAI-600127, INDIA
 
Abstract: 

A mathematical model is presented for an optically dense fluid past an isothermal circular cylinder with chemical reaction taking place in it. A constant, static, magnetic field is applied transverse to the cylinder surface. The cylinder surface is maintained at a constant temperature. New variables are introduced to transform the complex geometry into a simple shape and the boundary layer conservation equations, which are parabolic in nature, are normalized into non-similar form and then solved numerically with the welltested, efficient, implicit, Crank-Nicolson finite difference scheme. Numerical computations are made and the effects of the various material parameters on the velocity, temperature and concentration as well as the surface skin friction and surface heat and mass transfer rates are illustrated graphs and tables. Increasing magnetohydrodynamic body force parameter (M) is found to decelerate the flow but enhance temperatures.
Thermal radiation is seen to reduce both velocity and temperature in the boundary layer. Local Nusselt number is also found to be enhanced with increasing radiation parameter.

 
Keyword(s): CIRCULAR CYLINDER, CHEMICAL REACTION, MAGNETOHYDRODYNAMICS, HEAT AND MASS TRANSFER, UNSTEADY FLOW
 
References: 
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