scholarly journals Radiation and Inclined Magnetic Field Effects on Unsteady Hydromagnetic Free Convection Flow past an Impulsively Moving Vertical Plate in a Porous Medium

2014 ◽  
Vol 7 (02) ◽  
Keyword(s):  
Magnetic Field ◽  
Porous Medium ◽  
Free Convection ◽  
Vertical Plate ◽  
Convection Flow ◽  
Inclined Magnetic Field ◽  
Magnetic Field Effects ◽  
Free Convection Flow ◽  
Field Effects ◽  
Flow Past

scholarly journals Aligned Magnetic Field, Radiation, and Rotation Effects on Unsteady Hydromagnetic Free Convection Flow Past an Impulsively Moving Vertical Plate in a Porous Medium

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Sandeep Naramgari ◽  
Sugunamma Vangala ◽  
Mohankrishna Penem
Keyword(s):  
Magnetic Field ◽  
Exact Solution ◽  
Porous Medium ◽  
Free Convection ◽  
Vertical Plate ◽  
Convection Flow ◽  
Governing Equations ◽  
Free Convection Flow ◽  
Field Radiation ◽  
Aligned Magnetic Field

We analyse the effects of aligned magnetic field, radiation, and rotation on unsteady hydromagnetic free convection flow of a viscous incompressible electrically conducting fluid past an impulsively moving vertical plate in a porous medium in presence of heat source. An exact solution of the governing equations in dimensionless form is obtained by Laplace transform technique in ramped temperature case. To compare the results obtained in this case with that of isothermal plate, the exact solution of the governing equations is also obtained for isothermal plate and results are discussed graphically in both ramped temperature and isothermal cases.

scholarly journals Effects of Thermal Diffusion and Radiation on Unsteady MHD Free Convection Flow Past an Infinite Heated Vertical Plate in a Porous Medium

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
S. Sivaiah ◽  
K. Anitha ◽  
S. Venkataramana
Keyword(s):  
Porous Medium ◽  
Free Convection ◽  
Thermal Diffusion ◽  
Vertical Plate ◽  
Nonlinear Differential Equations ◽  
Convection Flow ◽  
Free Convection Flow ◽  
Boundary Layer Equations ◽  
Similarity Transformations ◽  
Flow Past

We have explored the influence of thermal diffusion and radiation on unsteady magnetohydrodynamic free convection flow past an infinite heated vertical plate in a porous medium. The governing boundary layer equations are written into a dimensionless form by similarity transformations. The transformed nonlinear differential equations are solved numerically with finite element methods. Numerical calculations are carried out for different values of dimensionless parameters. The results are presented graphically for velocity, temperature, and concentration profiles and show that the flow field and other quantities of physical interest are significantly influenced by these parameters.

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