Abstract
The paper argues that to achieve the desired width of applicability for use in general CFD software, turbulence modelling at second-moment level needs to be based upon making the pressure-strain term and other major processes comply with the two-component limit (TCL), a strategy first advocated by Lumley [24]. The approach is especially powerful for flows close to surfaces that are far from flat and in applications to horizontal, stably-stratified flows where, due to the action of buoyancy, the stress tensor also approaches a two-component form.
A range of recent applications of TCL modelling is presented including flow in curved ducts, three-dimensional wall jets, free-surface jets and stably-stratified mixing regions.
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Craft, T., Launder, B. Principles and Performance of TCL-Based Second-Moment Closures. Flow, Turbulence and Combustion 66, 355–372 (2001). https://doi.org/10.1023/A:1013514632684
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DOI: https://doi.org/10.1023/A:1013514632684