The Azimuth Project
Turbulence modeling (Rev #1)



As defined by Wikipedia:

Turbulence modeling is the construction and use of a model to predict the effects of turbulence. Averaging is often used to simplify the solution of the governing equations of turbulence, but models are needed to represent scales of the flow that are not resolved.

Here is shown how common models relate to each other:

Level 0Direct Numerical simulation (DNS)
Level 1Large-Eddy Simulation (LES)
Level 2Reynolds-Averaged Navier-Stokes equations
-2nd order (closures). Reynolds-Stress Transport models (RST)
-2nd order. Algebraic Reynolds Stress models (ARS)

See also…