Directional Effects in 3-D Diffusers
Abstract : The effect of direction on the diffusion of incompletely mixed flows is examined. The governing boundary layer equations are linearized about an average streamwise velocity and the cross flow velocity terms are assumed to be small. The equations are transformed to a single equation of the classical unsteady heat conduction type in terms of a single variable including both velocity and pressure. The known solutions to the heat conduction equation are then applied and the results for diffusion in different directions are compared. (Author)