Aeroacoustics research in Europe : The CEAS - ASC report on 2008 highlights

aeroacoustics community on an European scale and European aeronautics activities internationally. In this context, ‘‘aeroacoustics’’ encompasses all aerospace acoustics and related areas. Each year the committee highlights some of the research and development projects in Europe. This paper is a report on highlights of aeroacoustics research in Europe in 2008, compiled from information provided to the ASC of the CEAS. During 2008, numerous research programmes were funded by the European Union. Some of the contributions submitted to the editor summarize selected findings from these programmes, while other articles cover issues supported by national associations or by industries. Furthermore, a concise summary of the workshop on ‘‘Turbomachinery Broadband Noise’’ held in Bilbao in October is included in this report. Enquiries concerning all contributions should be addressed to the authors who are given at the end of each subsection. & 2009 Elsevier Ltd. All rights reserved. 1. CEAS-ASC workshop The 12th workshop of the CEAS Aeroacoustics Committee, devoted to ‘‘Turbomachinery Broadband Noise’’ was held in the Faculty of Engineering of Bilbao, Spain, on 23–24 October 2008. It was locally organized by Ana Villate, from the Aeronautical Technologies Centre (CTA). The chairman of the scientific committee was Emilio Campos from INTA (Instituto Nacional de Técnica Aerospacial), who will act as Guest Editor of a special issue of the International Journal of Aeroacoustics dedicated to the workshop. Turbomachinery noise is still dominated by tones but fan broadband noise emerges now as a practical issue for aircraft noise reduction. The interest in this subject was demonstrated by the 68 attendants and the 21 papers presented over two days There were three keynote lectures, the first one being ‘‘PROBAND: Improvement of Fan Broadband Noise Prediction: Experimental Investigation and Computational Modelling’’ given by Lars Enghardt from DLR. Lars Enghardt presented a summary of the recently finished European project PROBAND devoted to the understanding of the broadband noise generation mechanisms and to the development of prediction methods using conventional or advanced computational techniques. The second lecture was given by Stewart Glegg from Florida Atlantic University. Entitled ‘‘The Effect of Blade Thickness and Angle of Attack on Broadband Fan Noise’’, it gave a review of the prediction methodologies for rotor alone noise and rotor stator interaction noise with emphasis on broadband effects. The third invited talk ‘‘Using Phased Array Beamforming to Identify Broadband Noise Sources in a Turbofan Engine’’ was presented by All rights reserved. oustics research in Europe: The CEAS-ASC report on 2008 highlights, Journal of .jsv.2009.07.022