COLLABORATIVE TESTING OF TURBULENCE MODELS (DATA-BANK CONTRIBUTION)

This is a brief report on a special project. Data from experiments and simulations were collected and distributed to over 100 turbulence mod elers and other participants in 16 different countries. The modelers m ailed the results of their ''predictions'' back to the organizers for distribution to ail the participants for comment. The data covered mos t types of turbulent flow, compressible and incompressible, but the em phasis was on complex (strongly nonequilibrium) flows. No model was ca pable of predicting the full range of flows to good engineering accura cy, but stress-transport models seemed to perform best. The exchange o f views and results alone has been of real benefit to modelers.