**InternationaleJournals**

**MHD AND CHEMICAL REACTION EFFECTS ON UNSTEADY FLOW PAST AN ACCELERATED ISOTHERMAL INFINITE VERTICAL PLATE**

**R. Muthucumaraswamy ^{a} and M. Radhakrishnanb ^{b}**

** ^{a & b}**Department of Applied Mathematics, SriVenkateswara College of Engineering, Sriperumbudur 602 105, INDIA. Email: msamy@svce.ac.in

**Abstract**

An exact solution to the problem of unsteady hydromagnetic flow past a uniformly accelerated isothermal infinite vertical plate with uniform mass diffusion is presented here, taking in to account the homogeneous chemical reaction of first order. The plate temperature is raised to and the concentration level near the plate is also raised to. The dimensionless governing equations are solved using Laplace-transform technique. The velocity, temperature and concentration fields are studied for different physical parameters like thermal Grashof number, mass Grashof number, Schmidt number, Prandtl number, chemical reaction parameter and time. It is observed that the velocity increases with increasing values of thermal Grashof number or mass Grashof number. It is also observed that the velocity increases with decreasing chemical reaction parameter or magnetic field parameter.

**Keywords:**
accelerated, isothermal, vertical plate, heat and mass transfer, chemical
reaction, magnetic field.

**International
eJournal of Mathematics and Engineering**

**Volume 3,
Issue ****1,** **Pages: 1382 - 1389**