k-omega-SST Delayed Detached Eddy Simulation (DDES)

Table of Contents

• Properties
• Model equations
• Default model coefficients
• Initialisation
• Usage
• Boundary conditions
• Further information

Note

Under construction - please check again later

Properties

• Two equation model for the turbulence kinetic energy, \( k \), and turbulence specific dissipation rate, \( \omega \).
• Based on the k-omega SST model

Model equations

The model equations are the same as used by the DES variant of the model, with a different approximation for \( \tilde{d} \):

Default model coefficients

Initialisation

Usage

The model is specified using:

LES
{
    turbulence      on;
    LESModel        kOmegaSSTDDES;
}

Boundary conditions

Inlet

• Fixed value

Outlet

• Constrained outlet

Walls

• wall functions

Further information

Source code:

• Foam::LESModels::kOmegaSSTDDES

References:

• Gritskevich et al. [23]

See also:

• DES variant

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