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3 International Journal of Applied Mechanics and Engineering

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Chemical reaction on moving vertical plate with variable temperature and constant mass flux in the presence of radiation

Kulandaivel T., Muthucumaraswamy R., Loganathan P.

International Journal of Applied Mechanics and Engineering

2009

Vol. 14, no 2

373-387

A finite difference solution of the transient natural convection flow of an incompressible viscous fluid past an impulsively started semi-infinite vertical plate with constant mass flux and variable surface temperature in the presence of thermal radiation is presented here. The velocity profiles are compared with the exact solution and are found to be in good agreement. The velocity, temperature and concentration profiles are shown graphically. It is observed that the velocity decreases with increasing values of radiation or the chemical reaction parameter. The local as well as average skin-friction, Nusselt number and Sherwood number are shown graphically.

Effects of heat and mass transfer on a moving vertical cylinder with chemically reactive species diffusion

Ganesan P., Loganathan P.

International Journal of Applied Mechanics and Engineering

2003

Vol. 8, no 2

195-205

A numerical analysis is carried out to examine the combined heat and mass transfer along with chemical reaction characteristics in a free convective flow over a moving semi-infinite vertical cylinder. The governing equations are solved using an implicit finite difference scheme of Crank-Nicolson type. The effects of the chemical reaction in transient velocity, temperature, concentration, local and average skin-friction, Nusselt number and Sherwood number profiles are illustrated and discussed for various physical parametric values. It is observed that with an increase in the chemical reaction parameter K or the Schmidt number Sc, velocity decreases, but velocity increases with an increasing thermal Grashof number Gr or mass Grashof number Gc. The surface mass transfer strongly depends on the Schmidt number and the chemical reaction and it decreases with their increasing values.

Radiation effects on flow past an impulsively started infinite vertical plate

Ganesan P., Loganathan P., Soundalgekar V. M.

International Journal of Applied Mechanics and Engineering

2001

Vol. 6, no 3

719-730

Flow past an impulsively started infinite vertical isothermal plate in the presence of thermal radiation effects is studied here. The fluid considered is a gray, absorbing-emitting radiation but a non-scattering medium. It is observed that for an increase in radiation parameter N or the Grashof number Gr, there is a fall in the velocity or temperature, but compared to the no-radiation case, there is a rise in the velocity and temperature of the fluid.