COMPUTATION OF AERODYNAMIC FLOWS WITH TURBULENCE-TRANSPORT MODELS BASED ON 2ND-MOMENT CLOSURE

The paper argues the merits of adopting general and fundamentally soun d practices for modelling turbulence transport in complex aerodynamic flows. Particular emphasis is put on the use of second-moment closure in separated conditions. The potential for generality of this modellin g level is argued first by reference to the exact Reynolds-stress-gene ration terms and their response to streamline curvature and irrotation al strain. Closure Variants are then outlined, and their performance i s illustrated by way of several examples for complex 2D and 3D flows f eaturing impingement and separation, the latter induced either by shoc ks or by high incidence.