The Turbulent Flow, v2-f (spf) interface (
) is used for simulating single-phase flows at high Reynolds numbers. The physics interface is suitable for incompressible flows, weakly compressible flows, and compressible flows at low Mach numbers (typically less than 0.3).
A different turbulence model can be selected under Turbulence model.
Laminar or creeping flow may simulated by changing the
Turbulence model type to
None.
The Turbulence model property disables the
Neglect inertial term (Stokes flow) check box, and for 2D components also the
Shallow Channel Approximation check box.
The v2-f model employs per default an Automatic wall treatment, which switches between a low-Reynolds-number formulation and a wall function formulation depending on how well resolved the flow is close to the wall. The automatic wall treatment gives a robust formulation that makes the most out of the available resolution.
Select the Low Re option in order to enforce resolution all the way down to the wall. This can be more accurate than the automatic wall treatment provided that the mesh is fine enough.