Renormalization group based algebraic turbulence model for three-dimensional turbomachinery flows

Abstract

An algebraic eddy-viscosity turbulence model based on the renormalization group formalism is presented with modifications to the baseline renormalization group model for wakes and separated flows. The renormalization group model is functionally the same as a miring length model but requires neither length-based near- and far-wall damping terms nor empirical boundary-layer transition models. The damping characteristics of the renormalization group model and its behavior in laminar-to-turbulent transition regions are briefly studied using results from a two-dimensional channel flow calculation