![]() The wall's mesh resolution in viscous dimensionless units (color legend Aurora Borealis, in this figure) determines the functionality for automatically treating walls - either a low Reynolds turbulence model formulation or a wall function. The functionality for automatically treating walls for turbulent flow provides the accuracy allowed by your mesh resolution, while also inheriting the robustness that is provided by wall functions. Switching between the two can occur in the same model. Yet, when the mesh is too coarse, wall functions together with the selected turbulence model are automatically used instead. If the mesh resolution close to the wall is adequate, then a low Reynolds formulation is used. This functionality is available and is selected by default for the following turbulence models: Algebraic yPlus, L-VEL, k-ω, SST, Low Reynolds number k-ε, Spalart Allmaras, and v2-f. New functionality for wall-bounded turbulent flows allows for the automatic switching between a low Reynolds number turbulence model formulation and wall functions when solving your model. ![]() Streamlines and pressure field (left) and vortex core (right) in a model of the flow in a cyclone separator.Īpplication Gallery link: Flow in a Hydrocyclone Automatic Wall Treatment for Turbulent Flow
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