**InternationaleJournals**

**THERMAL RADIATION AND MHD EFFECTS
ON ISOTHERMAL VERTICAL OSCILLATING PLATE WITH UNIFORM MASS DIFFUSION**

**R.Muthucumaraswamy**

Department of Applied Mathematics, Sri Venkateswara College of Engineering

Sriperumbudur 602 105 , India, E-Mail : msamy@svce.ac.in

**Abstract**

Thermal radiation effects on unsteady free convective flow of a viscous incompressible flow past an infinite isothermal vertical oscillating plate with uniform mass diffusion in the presence magnetic field has been considered. The fluid considered here is a gray, absorbing-emitting radiation but a non-scattering medium. The plate temperature is raised to and the concentration level near the plate is also raised to . An exact solution to the dimensionless governing equations has been obtained by the Laplace transform method, when the plate is oscillating harmonically in its own plane. The effects of velocity, temperature and concentration are studied for different parameters like magnetic field parameter, phase angle, Schmidt number, thermal Grashof number, mass Grashof number and time. It is observed that the velocity increases with decreasing magnetic field parameter or radiation parameter. It is also observed that the velocity increases with decreasing phase angle ωt

2000 Mathematics Subject classification : 80A20

*Key words**:* radiation, isothermal, oscillating, vertical
plate, magnetic field.

**International
eJournal of Mathematics and Engineering**

Volume 2, Issue 1, Pages: 800 - 808