||November 24, 1999 16:02
Re: Transition Modeling using CFX4.2
Transition modeling in separated flows... that sounds too difficult for a two-equation model. My experience is that on real-life applications two-equation models are not capable of predicting transition correctly, although they in theory could predict by-pass transition (transition caused by diffusion of turbulent energe from the free-stream into the boundary layer). I've used both the standard k-w model and the "transition optimised" k-w model trying to predict transtion on turbine blades, none worked well. Haven't used CFX though.