Turbulence modeling for CFD, part 1

The present lecture is divided into two parts. The first part introduces the fundamental ideas, goals and limitations of turbulence models for numerical prediction of turbulent flows, the eddy viscosity based models used in practice including the special treatment of the near wall zones. The second part discusses the two equation models based on non-linear constitutive relations, the Reynolds stress transport equation-based models and also the engineering turbulence modeling of compressible flows. The capability of different existing models are demonstrated in a few application examples and the future direction of research is also highlighted.