UDC 536.25

P. M. Patil1) and P. S. Kulkarni2)

FREE CONVECTIVE OSCILLATORY FLOW OF A POLAR FLUID THROUGH
A POROUS MEDIUM IN THE PRESENCE OF OSCILLATING SUCTION AND TEMPERATURE

The aim of the work is to analyze a two-dimensional oscillatory 
free convective flow of an incompressible polar fluid through a porous 
medium which is bounded by an infinite vertical porous plate with 
oscillating suction and temperature at the wall. The governing equations 
are based on the volume averaging technique. Analytical expressions 
for the velocity, angular velocity, and temperature fields are obtained 
by using the regular perturbation technique. The analysis reveals 
a multiple boundary layer structure near the wall for the fields mentioned.

Keywords: Free convection, oscillatory flow, polar 
fluid, porous medium, oscillating wall temperature.

1)Department of Mathematics, J. S. S. College of Science, 
Vidyagiri, Dharwad-580 004, Karnataka, India; email: dr_pmpatil@yahoo.co.in; 
2)Department of Aerospace Engineering, Indian Institute of 
Science, Bangalore-560 012, India. Original article submitted June 
23, 2008. The article has been shortened with the authors' consent.