NUMERICAL AND EXPERIMENTAL-STUDY OF THE FORCED-CONVECTION INSIDE A ROTATING DISK-CYLINDER CONFIGURATION

In this paper, axisymmetric bulk flow patterns generated by moderate d isk rotation and counter-rotation inside a coaxial disk-cylinder confi guration with a fixed aspect ratio are obtained both experimentally an d numerically. Experimental results are based on chronophotographic vi sualization and image processing techniques, while numerical results a re computed using the full stationary Navier-Stokes equations assuming two different dynamic boundary conditions (no-slip and meridional fre e-slip) for all rigid walls. A comparative analysis between both numer ical distributing and the patterns obtained experimentally is carried out in terms of streamfunction and vorticity meridional distributions.