Reynolds-stress modelling of transonic afterbody flows

Several afterbody flows, involving shock-boundary-layer interaction. are used to evaluate recent developments in a realizable low Reynolds-number. secund-moment closure of turbulence. The model considered is a compressibility-adapted variant of the recent incompressible-flow form of Craft and Launder((1)). This includes a tensorially cubic model for the influential pressure-strain process, phi (y), which satisfies: the two-component-turbulence limit at the wall. is directly applicable to low-Reynolds-number now regions and does not rely on or use surface-topography parameters, such as wall-normal distance or direction. Improved predictions for afterbody flows are demonstrated. relative to existing low-Reynolds-number two-equation models and the most elaborate form of Reynolds-stress closure incorporating a linear approximation for the pressure-strain process.