RANS Turbulence Models: Which Should I Choose?

In this video, a quick overview of the most important RANS turbulence models are presented. As you may know, a large variety of turbulence models has been developed with an attempt to close the RANS equations. This makes the choice of a suitable turbulence model for a specific simulation a bit of a challenge. Therefore, this video can be considered as a guideline for the selection of the most suitable RANS turbulence model for a specific CFD simulation. In this presentation, the strengths, and limitations of the most popular RANS turbulence models, along with their modeling assumptions and formulations, are explained.

Video Outline:
0:00 - RANS Turbulence Models: A Quick Overview
1:29 - Reynolds-averaged Navier Stokes (RANS) equations
3:47 - Reynolds stress turbulence (RST) models
7:23 - Linear pressure-strain RST (LRST) model of Gibson-Launder
8:34 - Quadratic pressure-strain RST (QRST) model of Speziale-Sarkar-Gatski
9:03 - Elliptic blending RST (ERST) model of Lardeau-Manceau
10:39 - Eddy viscosity turbulence models
13:26 - Zero-equation turbulence models
13:50 - Mixing length model
15:02 - One-equation turbulence models
15:53 - Spalart-Allmaras model
18:37 - Two-equation turbulence models
20:51 - Standard k-epsilon turbulence model
22:55 - Realizable k-epsilon turbulence model
24:50 - Capturing the Near Wall Turbulence
29:55 - High-Reynolds-number turbulence models (high-Y+ wall treatment)
32:41 - Low-Reynolds-number turbulence model (low-Y+ wall treatment)
33:09 - Low Reynolds number approach (Standard k-epsilon low Reynolds number model, Abe-Kondoh-Nagano K-Epsilon low Reynolds number model)
35:34 - Two-layer approach (Two-layer k-epsilon turbulence model)
37:57 - Elliptic-blending approach (v2-f k-epsilon model, Billard and Laurence k-epsilon model)
43:00 - k-omega turbulence model
45:16 - K-omega Shear Stress Transport (SST) model
47:07 - Final notes on eddy viscosity models
48:16 - Nonlinear quadratic and cubic eddy viscosity models (Explicit Algebraic Reynolds Stress Turbulence (EARST) Models)