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4.5 Standard and SST $k$- $\omega$ Models

This section describes the theory behind the Standard and SST $k$- $\omega$ model. For details about using the models in ANSYS FLUENT, see this chapter and this section in the separate User's Guide.

This section presents the standard [ 379] and shear-stress transport (SST) [ 224] $k$- $\omega$ models. Both models have similar forms, with transport equations for $k$ and $\omega$. The major ways in which the SST model [ 225] differs from the standard model are as follows:

The transport equations, methods of calculating turbulent viscosity, and methods of calculating model constants and other terms are presented separately for each model.

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