Preface of the Editors

Abstract

The Euromech Colloquium 467 on Turbulent Flow and Noise Generation was held from July 18th to 20th, 2005 at the Centre International des Rencontres Mathématiques (CIRM) in Marseille, France. This international conference was attended by 65 participants coming from 10 different countries; 39 presentations were given, including three invited lectures by renowned experts: Fang Q. Hu (Old Dominion University, USA), Sanjiva K. Lele (Stanford University, USA) and Philippe Spalart (Boeing Commercial Airplanes, USA). The colloquium was followed in the same place by a summer school entitled Computational Aeroacoustics and CFD in Turbulent Flows, organized under the auspices of the Centre d’Eté de Mathématique et de Recherche Avancée en Calcul Scientifique (CEMRACS 2005) from July 18th to August 26th, 2005, which attracted around one hundred participants. This was the largest number of participants in this series of CEMRACS summer schools since its foundation in 1996 by Yvon Maday. The success of these two coupled events is a clear indication of the vitality of the subject of noise generation by flows and of its appeal to a wide population of scientists from various origins: acousticians, specialists of fluid mechanics and turbulence, applied mathematicians and specialists of numerical analysis. The Euromech Colloquium 467 was organized in the frame of the French–German research group FOR 508 Noise Generation in Turbulent Flows, whose aim is to develop and to assess novel noise simulation concepts for turbulent flow. A special focus is on the noise generated by turbulent jets. The research group FOR 508 is composed of seven projects, each of which is executed in joint cooperation of a German and a French research institution. The participants on the French side are: Ecole Polytechnique, Ecole Normale Supérieure, LMFA-Ecole Centrale de Lyon, IMFT de Toulouse, Université de Poitiers, Université de Provence (Aix-Marseille I) and Université Louis Pasteur Strasbourg. The German members of the research group FOR 508 are from the following institutions: Universität Stuttgart, RWTH Aachen, Technische Universitäten München, Berlin and Darmstadt. The research group started its work in January 2002 with financial support from the German Research Foundation Deutsche Forschungsgemeinschaft (DFG) and the French Centre National de la Recherche Scientifique (CNRS).