CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Wiki > Turbulence modeling

Turbulence modeling

From CFD-Wiki

(Difference between revisions)
Jump to: navigation, search
(Content of turbulence modeling section)
 
(48 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]]
+
 
-
# [[One equation models]]
+
*RANS-based models
-
## [[Prandtl's one-equation model]]
+
**Linear eddy-viscosity models
-
## [[Baldwin-Barth model]]
+
***Algebraic models
-
## [[Spalart-Allmaras model]]
+
***One and two equation models
-
# [[Two equation models]]
+
**Non-linear eddy viscosity models and algebraic stress models
-
## [[k-epsilon models]]
+
**Reynolds stress transport models
-
### [[Standard k-epsilon model]]
+
 
-
### [[Realisable k-epsilon model]]
+
*Large eddy simulations
-
### [[RNG k-epsilon model]]
+
 
-
### [[Near wall treatment for k-epsilon models]]
+
*Detached eddy simulations and other hybrid models
-
## [[k-omega models]]
+
 
-
### [[Wilcox's k-omega model]]
+
*Direct numerical simulations
-
### [[Wilcox's modified k-omega model]]
+
 
-
### [[SST k-omega model]]
+
==Content of turbulence modeling section==
-
### [[Near wall treatment for k-omega models]]
+
 
-
# [[Reynolds stress model (RSM) ]]
+
# '''[[Turbulence]]'''
-
# [[Large eddy simulation (LES) ]]
+
# '''[[RANS-based turbulence models]]'''
 +
## '''''[[Linear eddy viscosity models]]'''''
 +
### ''[[Algebraic turbulence models|Algebraic models]]''
 +
#### [[Cebeci-Smith model]]
 +
#### [[Baldwin-Lomax model]]
 +
#### [[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-Agarwal-Siikonen Model]]
 +
#### [[Wray-Agarwal(WA) turbulence Model]]
 +
#### [[Shuai-Agarwal turbulence Model]]
 +
### ''[[Two equation models]]''
 +
#### [[k-epsilon models]]
 +
##### [[Standard k-epsilon model]]
 +
##### [[Realizable 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]]
 +
#### <math>\overline{\upsilon^2}-f</math> model
 +
#### <math>\zeta-f</math> model
 +
## '''''[[Reynolds stress model (RSM) ]]'''''
 +
# '''[[Large eddy simulation (LES) ]]'''
## [[Smagorinsky-Lilly model]]
## [[Smagorinsky-Lilly model]]
## [[Dynamic subgrid-scale model]]
## [[Dynamic subgrid-scale model]]
Line 25: Line 63:
## [[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) ]]
+
## [[Structural modeling]]
-
# [[v2-f models]]
+
# '''[[Detached eddy simulation (DES) ]]'''
-
# [[Wall modeling]]
+
# '''[[Direct numerical simulation (DNS) ]]'''
 +
# '''[[Turbulence near-wall modeling]]'''
 +
# '''[[Turbulence free-stream boundary conditions]]'''
 +
## [[Turbulence intensity]]
 +
## [[Turbulence length scale]]
 +
 
 +
[[Category:Turbulence models]]

Latest revision as of 19:16, 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
      1. Algebraic models
        1. Cebeci-Smith model
        2. Baldwin-Lomax model
        3. Johnson-King model
        4. A roughness-dependent model
      2. One equation models
        1. Prandtl's one-equation model
        2. Baldwin-Barth model
        3. Spalart-Allmaras model
        4. Rahman-Agarwal-Siikonen Model
        5. Wray-Agarwal(WA) turbulence Model
        6. Shuai-Agarwal turbulence Model
      3. Two equation models
        1. k-epsilon models
          1. Standard k-epsilon model
          2. Realizable k-epsilon model
          3. RNG k-epsilon model
          4. Near-wall treatment
        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
        3. Realisability issues
          1. Kato-Launder modification
          2. Durbin's realizability constraint
          3. Yap correction
          4. Realisability and Schwarz' inequality
    2. Nonlinear eddy viscosity models
      1. Explicit nonlinear constitutive relation
        1. Cubic k-epsilon
        2. Explicit algebraic Reynolds stress models (EARSM)
      2. v2-f models
        1. \overline{\upsilon^2}-f model
        2. \zeta-f model
    3. Reynolds stress model (RSM)
  3. 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
    7. Structural modeling
  4. Detached eddy simulation (DES)
  5. Direct numerical simulation (DNS)
  6. Turbulence near-wall modeling
  7. Turbulence free-stream boundary conditions
    1. Turbulence intensity
    2. Turbulence length scale
My wiki