1993 Volume 59 Issue 565 Pages 2777-2781
A new pressure-strain-rate correlation model in a Reynolds stress equation is proposed. When a Reynolds stress equation is written in other than Cartesian coordinates, source-like terms arise in convection terms. The present model incorporates the effect of isotropization on the source-like terms. New model constants are determined to satisfy four basic criteria simultaneously : (1) the effect of streamline curvature, (2) measured stress levels in homogeneous free shear flow, (3) analytical results for rapid distortion theory and (4) return to isotropy in grid turbulence decay.