# Turbulence modeling

(Difference between revisions)
 Revision as of 02:58, 8 April 2021 (view source) (→Content of turbulence modeling section)← Older edit Revision as of 19:14, 10 April 2021 (view source)m (→Content of turbulence modeling section)Newer edit → Line 30: Line 30: #### [[Baldwin-Barth model]] #### [[Baldwin-Barth model]] #### [[Spalart-Allmaras model]] #### [[Spalart-Allmaras model]] - #### [[Rahman-Siikonen-Agarwal Model]] + #### [[Rahman-Agarwal-Siikonen Model]] #### [[Wray-Agarwal(WA) turbulence Model]] #### [[Wray-Agarwal(WA) turbulence Model]] #### [[Shuai-Agarwal turbulence Model]] #### [[Shuai-Agarwal turbulence Model]] Line 36: Line 36: #### [[k-epsilon models]] #### [[k-epsilon models]] ##### [[Standard k-epsilon model]] ##### [[Standard k-epsilon model]] - ##### [[Realisable k-epsilon model]] + ##### [[Realizable k-epsilon model]] ##### [[RNG k-epsilon model]] ##### [[RNG k-epsilon model]] ##### [[Near-wall treatment for k-epsilon models|Near-wall treatment]] ##### [[Near-wall treatment for k-epsilon models|Near-wall treatment]]

## Revision as of 19:14, 10 April 2021

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

• RANS-based models
• Linear eddy-viscosity models
• Algebraic models
• One and two equation models
• Non-linear eddy viscosity models and algebraic stress models
• Reynolds stress transport models
• Large eddy simulations
• Detached eddy simulations and other hybrid models
• Direct numerical simulations

## Content of turbulence modeling section

1. Turbulence
2. RANS-based turbulence models
1. Linear eddy viscosity models
2. Nonlinear eddy viscosity models
1. Explicit nonlinear constitutive relation
2. v2-f models
1. $\overline{\upsilon^2}-f$ model
2. $\zeta-f$ model
3. Reynolds stress model (RSM)
3. Large eddy simulation (LES)
4. Detached eddy simulation (DES)
5. Direct numerical simulation (DNS)
6. Turbulence near-wall modeling
7. Turbulence free-stream boundary conditions