Langtry-Menter k-omega Shear Stress Transport (SST)

Note
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Properties

Model equations

Default model coefficients

Initialisation

See kOmegaSST initialisation

Boundary conditions

Inlet

  • Intermittency:

    \[ \gamma = 1 \]

  • Transition momentum thickness Reynolds number:

    \[ Re_\theta = \begin{cases} 1173.51 - 589.428 Tu + \frac{0.2196}{Tu^2} & \text{if } Tu \le 1.3 \\ \frac{331.5}{(Tu - 0.5658)^{0.671}} & \text{if } Tu > 1.3 \end{cases} \]

    where

    \[ Tu = 100 \frac{\sqrt{2/3 k}}{|\u_\infty|} \]

Walls

  • Intermittency: zero gradient

    \[ \frac{\partial}{\partial n} \gamma = 0 \]

  • Transition momentum thickness Reynolds number: zero gradient

    \[ \frac{\partial}{\partial n} Re_\theta = 0 \]

Usage

The model is specified using:

RAS
{
    turbulence      on;
    RASModel        kOmegaSSTLM;
}

Further information

Source code:

References


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