Turbulence modeling

(Difference between revisions)
 Revision as of 16:59, 30 October 2009 (view source)← Older edit Latest revision as of 20:00, 25 June 2013 (view source)Media777 (Talk | contribs) (→Content of turbulence modeling section) (14 intermediate revisions not shown) Line 18: Line 18: ==Content of turbulence modeling section== ==Content of turbulence modeling section== - # [[Turbulence]] + # '''[[Turbulence]]''' - # [[Introduction to turbulence/Reynolds averaged equations|RANS-based turbulence models]] + # '''[[RANS-based turbulence models]]''' - ## [[Linear eddy viscosity models]] + ## '''''[[Linear eddy viscosity models]]''''' - ### [[Algebraic turbulence models|Algebraic models]] + ### ''[[Algebraic turbulence models|Algebraic models]]'' - ####[[Cebeci-Smith model]] + #### [[Cebeci-Smith model]] - ####[[Baldwin-Lomax model]] + #### [[Baldwin-Lomax model]] #### [[Johnson-King model]] #### [[Johnson-King model]] #### [[A roughness-dependent model]] #### [[A roughness-dependent model]] - ### [[One equation turbulence models|One equation models]] + ### ''[[One equation turbulence models|One equation models]]'' #### [[Prandtl's one-equation model]] #### [[Prandtl's one-equation model]] #### [[Baldwin-Barth model]] #### [[Baldwin-Barth model]] #### [[Spalart-Allmaras model]] #### [[Spalart-Allmaras model]] - ### [[Two equation models]] + #### [[Rahman-Siikonen-Agarwal Model]] + ### ''[[Two equation models]]'' #### [[k-epsilon models]] #### [[k-epsilon models]] ##### [[Standard k-epsilon model]] ##### [[Standard k-epsilon model]] ##### [[Realisable k-epsilon model]] ##### [[Realisable k-epsilon model]] ##### [[RNG k-epsilon model]] ##### [[RNG k-epsilon model]] - ##### [[Near-wall treatment for k-epsilon models]] + ##### [[Near-wall treatment for k-epsilon models|Near-wall treatment]] #### [[k-omega models]] #### [[k-omega models]] ##### [[Wilcox's k-omega model]] ##### [[Wilcox's k-omega model]] ##### [[Wilcox's modified k-omega model]] ##### [[Wilcox's modified k-omega model]] ##### [[SST k-omega model]] ##### [[SST k-omega model]] - ##### [[Near-wall treatment for k-omega models]] + ##### [[Near-wall treatment for k-omega models|Near-wall treatment]] - #### [[Two equation turbulence model constraints and limiters]] + #### [[Two equation turbulence model constraints and limiters|Realisability issues]] ##### [[Kato-Launder modification]] ##### [[Kato-Launder modification]] ##### [[Durbin's realizability constraint]] ##### [[Durbin's realizability constraint]] ##### [[Yap correction]] ##### [[Yap correction]] ##### [[Realisability and Schwarz' inequality]] ##### [[Realisability and Schwarz' inequality]] - ## [[Nonlinear eddy viscosity models]] + ## '''''[[Nonlinear eddy viscosity models]]''''' + ### [[Explicit nonlinear constitutive relation]] + #### [[Cubic k-epsilon]] + #### [[Explicit algebraic Reynolds stress models (EARSM)]] ### [[v2-f models]] ### [[v2-f models]] #### $\overline{\upsilon^2}-f$ model #### $\overline{\upsilon^2}-f$ model #### $\zeta-f$ model #### $\zeta-f$ model - ## [[Reynolds stress model (RSM) ]] + ## '''''[[Reynolds stress model (RSM) ]]''''' - # [[Large eddy simulation (LES) ]] + # '''[[Large eddy simulation (LES) ]]''' ## [[Smagorinsky-Lilly model]] ## [[Smagorinsky-Lilly model]] ## [[Dynamic subgrid-scale model]] ## [[Dynamic subgrid-scale model]] Line 58: Line 62: ## [[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) ]] + ## [[Structural modeling]] - # [[Direct numerical simulation (DNS) ]] + # '''[[Detached eddy simulation (DES) ]]''' - # [[Turbulence near-wall modeling]] + # '''[[Direct numerical simulation (DNS) ]]''' - # [[Turbulence free-stream boundary conditions]] + # '''[[Turbulence near-wall modeling]]''' + # '''[[Turbulence free-stream boundary conditions]]''' ## [[Turbulence intensity]] ## [[Turbulence intensity]] ## [[Turbulence length scale]] ## [[Turbulence length scale]] [[Category:Turbulence models]] [[Category:Turbulence models]]

Latest revision as of 20:00, 25 June 2013

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