Large Eddy Simulation (LES)

Large Eddy Simulation (LES)

OpenFOAM is distributed with a large library of LES models, LES filters and filter width functions (deltas), as listed below. The list also includes detached eddy simulation (DES) models.

Isochoric LES turbulence models


Smagorinsky Smagorinsky model
Smagorinsky2 Smagorinsky model with 3-D filter
dynSmagorinsky Dynamic Smagorinsky
homogenousDynSmagorinsky Homogeneous dynamic Smagorinsky model
dynLagrangian Lagrangian two equation eddy-viscosity model
scaleSimilarity Scale similarity model
mixedSmagorinsky Mixed Smagorinsky/scale similarity model
dynMixedSmagorinsky Dynamic mixed Smagorinsky/scale similarity model
kOmegaSSTSAS k − ω  \relax \special {t4ht=-SST scale adaptive simulation (SAS) model
oneEqEddy k  \relax \special {t4ht=-equation eddy-viscosity model
dynOneEqEddy Dynamic k  \relax \special {t4ht=-equation eddy-viscosity model
locDynOneEqEddy Localised dynamic k  \relax \special {t4ht=-equation eddy-viscosity model
spectEddyVisc Spectral eddy viscosity model
LRDDiffStress LRR differential stress model
DeardorffDiffStress Deardorff differential stress model
SpalartAllmaras Spalart-Allmaras model
SpalartAllmarasDDES Spalart-Allmaras delayed detached eddy simulation (DDES) model
SpalartAllmarasIDDES Spalart-Allmaras improved DDES (IDDES) model
 
Anisochoric LES turbulence models


Smagorinsky Smagorinsky model
oneEqEddy k  \relax \special {t4ht=-equation eddy-viscosity model
dynOneEqEddy Dynamic k  \relax \special {t4ht=-equation eddy-viscosity model
lowReOneEqEddy Low-Re  \relax \special {t4ht= k  \relax \special {t4ht=-equation eddy-viscosity model
DeardorffDiffStress Deardorff differential stress model
SpalartAllmaras Spalart-Allmaras 1-eqn mixing-length model
 
LES deltas


PrandtlDelta Prandtl delta
cubeRootVolDelta Cube root of cell volume delta
maxDeltaxyz Maximum of x, y and z; for structured hex cells only
smoothDelta Smoothing of delta
 
LES filters


laplaceFilter Laplace filters
simpleFilter Simple filter
anisotropicFilter Anisotropic filter