Turbulence modeling

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Revision as of 22:07, 22 May 2007

Turbulence modeling is a key issue in most CFD simulations. Virtually all engineering applications are turbulent and hence require a turbulence model.

Classes of turbulence models

• Algebraic models
• Eddy viscosity transport models, one and two equation models
• Non-linear eddy viscosity models and algebraic stress models
• Reynolds stress transport models
• Detached eddy simulations and other hybrid models
• Large eddy simulations
• Direct numerical simulations

1. Turbulence
2. Algebraic models
   1. Cebeci-Smith model
   2. Baldwin-Lomax model
   3. Johnson-King model
3. One equation models
   1. Prandtl's one-equation model
   2. Baldwin-Barth model
   3. Spalart-Allmaras model
4. Two equation models
   1. k-epsilon models
      1. Standard k-epsilon model
      2. Realisable k-epsilon model
      3. RNG k-epsilon model
      4. Near-wall treatment for k-epsilon models
   2. k-omega models
      1. Wilcox's k-omega model
      2. Wilcox's modified k-omega model
      3. SST k-omega model
      4. Near-wall treatment for k-omega models
   3. Two equation turbulence model constraints and limiters
      1. Kato-Launder modification
      2. Durbin's realizability constraint
      3. Yap correction
5. v2-f models
   1. model
   2. model
6. Reynolds stress model (RSM)
7. Large eddy simulation (LES)
   1. Smagorinsky-Lilly model
   2. Dynamic subgrid-scale model
   3. RNG-LES model
   4. Wall-adapting local eddy-viscosity (WALE) model
   5. Kinetic energy subgrid-scale model
   6. Near-wall treatment for LES models
8. Detached eddy simulation (DES)
9. Direct numerical simulation (DNS)
10. Turbulence near-wall modeling
11. Turbulence free-stream boundary conditions
    1. Turbulence intensity
    2. Turbulent length scale