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.