MHD ‎r‎otating heat and mass transfer free convective flow past an exponentially accelerated isothermal plate with fluctuating mass ‎diffusion

Subject Areas : International Journal of Industrial Mathematics

K. Jonah ‎Philliph‎ ¹ , M. C. ‎Raju‎ ² , A. J. Chamkha‎ ³ , S. V. K. Varma ⁴

1 - Department of H\&S, Mother Theresa Institute of Engineering \& Technology, Palamaner - 517408, Andhra Pradesh, India.
2 - Department of H\&S, Annamacharya Institute of Technology and Sciences, (Autonomous), Rajampet - 516126, Andhra Pradesh, India.
3 - Manufacturing Engineering Department, The public authority for applied Education and training, Shuweikh - 70654 Kuwait.
4 - Department of Mathematics, S. V. University, Tirupati - 517502, Andhra Pradesh, India.

Received: 2014-10-30 Accepted : 2014-10-30 Published : 2014-11-01

Keywords: MHD, Rotation, heat and mass transfer, Exponentially accelerated ‎pla,

Abstract :

In this paper, we have considered the problem of rotating, magnetohydrodynamic heat and mass transfer by free convective flow past an exponentially accelerated isothermal vertical plate in the presence of variable mass diffusion. While the temperature of the plate is constant, the concentration at the plate is considered to be a linear function with respect to time t. The plate is assumed to be exponentially accelerated with a prescribed velocity against the gravitational field. The governing equations are solved by using Laplace transform technique and the effect of various physical parameters on the flow quantities are studied through graphs and the results are discussed. With the aid of the velocity, temperature and concentration fields the expressions for skin friction, rate of heat transfer in the form of Nusselt number and rate of mass transfer in the form of Sherwood number are derived and the results are discussed with the help of ‎tables.