# Turbulence modeling

(Difference between revisions)
 Revision as of 21:08, 23 March 2006 (view source)Jola (Talk | contribs)m← Older edit Revision as of 00:10, 18 August 2012 (view source)Twray (Talk | contribs) (→Content of turbulence modeling section)Newer edit → (34 intermediate revisions not shown) Line 1: Line 1: - # [[Turbulence]] + Turbulence modeling is a key issue in most CFD simulations. Virtually all engineering applications are turbulent and hence require a turbulence model. - # [[Zero equation models]] + - ##[[Cebeci-Smith model]] + ==Classes of turbulence models== - ##[[Baldwin-Lomax model]] + - # [[Half equation models]] + *RANS-based models - ## [[Johnson-King model]] + **Linear eddy-viscosity models - # [[One equation models]] + ***Algebraic models - ## [[Prandtl's one-equation model]] + ***One and two equation models - ## [[Baldwin-Barth model]] + **Non-linear eddy viscosity models and algebraic stress models - ## [[Spalart-Allmaras model]] + **Reynolds stress transport models - # [[Two equation models]] + - ## [[k-epsilon models]] + *Large eddy simulations - ### [[Standard k-epsilon model]] + - ### [[Realisable k-epsilon model]] + *Detached eddy simulations and other hybrid models - ### [[RNG k-epsilon model]] + - ### [[Near wall treatment for k-epsilon models]] + *Direct numerical simulations - ## [[k-omega models]] + - ### [[Wilcox's k-omega model]] + ==Content of turbulence modeling section== - ### [[Wilcox's modified k-omega model]] + - ### [[SST k-omega model]] + # '''[[Turbulence]]''' - ### [[Near wall treatment for k-omega models]] + # '''[[RANS-based turbulence models]]''' - ## [[Two equation turbulence model constraints and limiters]] + ## '''''[[Linear eddy viscosity models]]''''' - ### [[Kato-Launder modification]] + ### ''[[Algebraic turbulence models|Algebraic models]]'' - # [[v2-f models]] + #### [[Cebeci-Smith model]] - # [[Reynolds stress model (RSM) ]] + #### [[Baldwin-Lomax model]] - # [[Large eddy simulation (LES) ]] + #### [[Johnson-King model]] + #### [[A roughness-dependent model]] + ### ''[[One equation turbulence models|One equation models]]'' + #### [[Prandtl's one-equation model]] + #### [[Baldwin-Barth model]] + #### [[Spalart-Allmaras model]] + #### [[Rahman-Siikonen-Agarwal Model]] + ### ''[[Two equation models]]'' + #### [[k-epsilon models]] + ##### [[Standard k-epsilon model]] + ##### [[Realisable k-epsilon model]] + ##### [[RNG k-epsilon model]] + ##### [[Near-wall treatment for k-epsilon models|Near-wall treatment]] + #### [[k-omega models]] + ##### [[Wilcox's k-omega model]] + ##### [[Wilcox's modified k-omega model]] + ##### [[SST k-omega model]] + ##### [[Near-wall treatment for k-omega models|Near-wall treatment]] + #### [[Two equation turbulence model constraints and limiters|Realisability issues]] + ##### [[Kato-Launder modification]] + ##### [[Durbin's realizability constraint]] + ##### [[Yap correction]] + ##### [[Realisability and Schwarz' inequality]] + ## '''''[[Nonlinear eddy viscosity models]]''''' + ### [[Explicit nonlinear constitutive relation]] + #### [[Cubic k-epsilon]] + #### [[Explicit algebraic Reynolds stress models (EARSM)]] + ### [[v2-f models]] + #### $\overline{\upsilon^2}-f$ model + #### $\zeta-f$ model + ## '''''[[Reynolds stress model (RSM) ]]''''' + # '''[[Large eddy simulation (LES) ]]''' ## [[Smagorinsky-Lilly model]] ## [[Smagorinsky-Lilly model]] ## [[Dynamic subgrid-scale model]] ## [[Dynamic subgrid-scale model]] Line 30: Line 61: ## [[Wall-adapting local eddy-viscosity (WALE) model]] ## [[Wall-adapting local eddy-viscosity (WALE) model]] ## [[Kinetic energy subgrid-scale model]] ## [[Kinetic energy subgrid-scale model]] - ## [[Near wall treatment for LES models]] + ## [[Near-wall treatment for LES models]] - # [[Detached eddy simulation (DES) ]] + # '''[[Detached eddy simulation (DES) ]]''' - # [[Direct numerical simulation (DNS) ]] + # '''[[Direct numerical simulation (DNS) ]]''' - # [[Wall modeling]] + # '''[[Turbulence near-wall modeling]]''' - # [[Turbulence boundary conditions]] + # '''[[Turbulence free-stream boundary conditions]]''' ## [[Turbulence intensity]] ## [[Turbulence intensity]] - ## [[Turbulent length-scale]] + ## [[Turbulence length scale]] + + [[Category:Turbulence models]]

## Revision as of 00:10, 18 August 2012

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