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Computing combustion noise by combining Large Eddy Simulation with analytical models for the propagation of waves through turbine blades

Duran, Ignacio and Leyko, Matthieu and Moreau, Stéphane and Nicoud, Franck and Poinsot, Thierry Computing combustion noise by combining Large Eddy Simulation with analytical models for the propagation of waves through turbine blades. (2013) Comptes-rendus de l'Académie des Sciences de Paris - Série II, Mécanique, 341 (1-2). 131-140. ISSN 0764-4450

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Official URL: http://dx.doi.org/10.1016/j.crme.2012.10.012

Abstract

Two mechanisms control combustion noise generation as shown by Marble and Candel [1]: direct noise, in which acoustic waves propagate through the turbine stages and indirect noise, in which vorticity and/or entropy waves generate noise as they are convected through turbine stages. A method to calculate combustion-generated noise has been implemented in a tool called CHORUS. The method uses the Large eddy simulations of the combustion chamber obtained with the unstructured solver AVBP developed at CERFACS [2] and analytical models for the propagation through turbine stages. The propagation models [3] use the compact row hypothesis to write matching conditions between the inlet and the outlet of a turbine stage. Using numerical simulations, the validity of the analytical methods is studied and the errors made quantified.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The original publication is available at http://www.sciencedirect.com
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Université de Montpellier 2 (FRANCE)
Other partners > Université de Sherbrooke (CANADA)
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Deposited On:14 Jan 2014 09:24

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