A HYBRID K-EPSILON TURBULENCE MODEL OF RECIRCULATING FLOW

This investigation deals with the modification of streamline curvature effects in the k-epsilon turbulence model for the case of recirculating flows. Based upon an idea that the modification of curvature effects in C2 should not be made in regions where the streamline curvature is small, a hybrid k-epsilon model extended from the modification originally proposed by Srinivasan and Mongia is developed. A satisfactory agreement of model predictions with experimental data reveals that the hybrid k-epsilon model can perform better simulation of recirculating turbulent flows.