Realizability Conditions for a Non-linear k-ε Model in 2-D Flow Fields

Abstract

Realizability conditions for a non-linear k-ε model, which includes the strain parameter S and the rotation parameter Ω, are examined in 2-D flow fields. Restrictions for Cμ under three types of basic flow patterns, namely, a simple shear flow, a flow around a saddle point and a flow around a focal point are derived in a S-Ω plane.