Turbulence Modeling for Engineering Calculations

This course will review the fundamentals of turbulence modeling for flows of engineering interest, discuss the latest advancements in model development and applications, and address a number of issues that are critical for successful numerical simulations of turbulent flows. The main emphasis will be on closure models for the Reynolds-averaged Navier-Stokes equations, as they provide the only practical framework for modeling complex flows. Isotropic eddy-viscosity models, non-linear eddy-viscosity models and algebraic and transport Reynolds-stress models will be presented and their relative performance in a number of complex benchmark flows will be discussed. Special emphasis will be placed on approaches for modeling the structure of turbulence near smooth and rough walls and free-surfaces as well as on turbulence models for sediment-laden and stratified flows. Numerical issues regarding the robust and efficient implementation of turbulence models in CFD flow solvers will also be emphasized.