Heat transfers and radial flows via a viscous fluid squeezed between two parallel disks

For the physical system (shown in Fig. 1 in the paper), the convective effe ct in the axial direction is considered and an analytical solution of the g overning equations achieved. Good agreement is found between the analytical and numerical solutions so corroborating the approach adopted. For a small gap between the disks, heat actually flows into the upper disk, even thoug h the imposed temperature difference would initially have been considered t o cause the heat flux to be out of the upper disk. The radial pressure-dist ribution in the viscous liquid is presented as a function of the Reynolds n umber and R-0/d ratio. Axial bulk convection rises as the separation betwee n the two disks increases. (C) 2001 Elsevier Science Ltd. All rights reserv ed.