STEADY VISCOUS-FLOW IN A TRIANGULAR CAVITY

Steady recirculating viscous flow inside an equilateral triangular cav ity is generated by translating one side. The Navier-Stokes equations are solved numerically using finite differences on a transformed geome try. Alternative numerical approaches, and associated numerical diffic ulties, are also discussed. The results show a primary eddy and a seri es of secondary eddies at the stagnant corner. For high Reynolds numbe rs the interior of the primary eddy has constant vorticity, but its va lue cannot be predicted by the mean-squared law. (C) 1994 Academic Pre ss, Inc.