研究解説 : 研究解説 : Turbulence Models for Practical Applications : Survey of Models Part 2 ( Two-equation Models and Near Wall Treatment )

A survey is given of relatively simple turbulence models which are in use for solving practical flow problems. The models all employ the eddy viscosity/diffusivity concept. In Part I of the paper, algebraic mixing-length models, energy equation models employing a differential transport equation for the turbulent kinetic energy k were discussed. Here, an outline of various versions of the k-c two-equation model employing an additional length-scale-determining equation for the dissipation rate c is given. The merits and shortcomings of the individual models are discussed. Examples of model applications are presented in part III～V of the paper