Second Symposium on Turbulence and Shear Flow Phenomena
DOI: 10.1615/TSFP2
SOME NECESSARY CONDITIONS FOR A NON-LINEAR k-ε MODEL IN CLASSIFIED FLOW PATTERNS WITH A SINGULAR POINT
pages 155-160
DOI: 10.1615/TSFP2.1890
Краткое описание
Realizability conditions of a non-linear k - ε model are investigated firstly for classified mean flow patterns with a singular point. Constraints on the relation between cµ and the strain and rotation parameters (S,Ω) are derived theoretically for each fundamental flow patterns. Then, distributions of turbulent intensities in a simple flow such as a plane shear layer are derived analytically, using a nonlinear k - ε model, and are utilized to identify the model constants in the realizable cµ -(S, Ω ) relation.