These proceedings contain the papers presented at the ERCOFTAC International Symposium on Engineering Turbulence Modelling and Measurements - ETMM6 - held at Villasimius, Sardinia, Italy, in the period May 23-25, 2005. The symposium followed the previous five conferences on the topic of engineering turbulence modelling and measurements held in Dubrovnik, Yugoslavia, in 1990, Florence, Italy, in 1993, Crete, Greece, in 1996, Corsica, France, in 1999 and Mallorca, Spain, in 2002, but was held for the first time under the aegis of ERCOFTAC (European Research Community on Flow, Turbulence and Combustion). The proceedings of the previous conferences were also published by Elsevier
