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Basics of aeroacoustics and thermoacoustics - hardcover

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VKI LS 2007-09, Basics of aeroacoustics and thermoacoustics, ISBN 978-2-930389-79-6

Basics of aeroacoustics and thermoacoustics

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Basics of aeroacoustics and thermoacoustics
Abstract

The accurate modelling of the stability properties of energy conversion processes, such as gas turbines, industrial heaters or domestic heating systems, is facing aero-acoustical and thermo-acoustical issues hindering their economic sustainability.

This Lecture Series has been organized within the framework of the European Marie Curie Research Training Network (RTN) project “AETHER” (AEro-acoustical and THermo-acoustical coupling in enERgy processes), focused on the development of innovative prediction, diagnostic and control techniques for thermo-acoustical and aero-acoustical problems. The research topics address system modelling and stability analysis, the modelling of reacting and non-reacting unsteady flows and their coupling with acoustics, vibro-acoustic coupling and fatigue analysis, passive & active control techniques. The targeted fields of application encompass gas turbines, industrial heating systems as well as domestic/district heating systems and boilers. For more details of the AETHER project, see http://www.cerfacs.fr/aether.

The aim of these Lecture Series proceedings is to present the state-of-the-art in this multi-disciplinary engineering field. The course notes start with introductory lectures on the combustion modelling and on the aero-acoustics of internal flows. The second part is devoted to aero-acoustics with courses on unsteady flow modelling and modelling of noise source and propagation. System modelling and stability analysis of the energy conversion processes are developed in the third part. The emphasis of the next note is put on thermo-acoustics with courses on experimental methods in combustion and thermo-acoustics and on passive and active control of combustion instabilities. Additional lectures notes on biomass combustion, vibro-acoustical coupling and fatigue analysis conclude this volume. For each course notes, selected test cases illustrate the capabilities of the different approaches, allowing an evaluation of their performances and a quick application in various fields of research. The main objective of these proceedings is to allow an information transfer between well-known scientists, leaders in the aero-acoustics and combustion fields, and demanding industries and laboratories. For these reasons, the course notes should appeal not only to experts already working in the domain, but also to newcomers to the field.

Table of content

HIRSCHBERG, A. - Eindhoven University of Technology, The Netherlands:
Introduction to aero-acoustics of internal flows
DE GOEY, L.P.H.; TEN THIJE BOONKKAMP, J.H.M.; KORNILOV, V.N. - Eindhoven University of Technology, The Netherlands:
Response of laminar flames to acoustic waves
NICOUD, F. - University Montpellier II and I3M-CNRS UMR 5149, France:
Unsteady flows modeling and computation
ANTHOINE, J. - von Karman Institute for Fluid Dynamics, Belgium:
Fundamentals of aero-acoustical analogies
GOLLIARD, J.; VAN LIER, L.; VEDY, E. – TNO Science and Industry, The Netherlands:
Generation of unsteady aeroacoustic source terms from steady CFD
SCHRAM, C. - LMS International, Belgium:
Hybrid approach for aeroacoustic prediction in confined flows
POLIFKE, W. - TU München, Germany:
System modelling and stability analysis
HOCHGREB, S.1 & BALACHANDRAN, R.2 - 1University of Cambridge & 2University College London, United Kingdom:
Measurement techniques for turbulent combustion instabilities
FERNANDES, E.C. - Instituto Superior Técnico, Portugal:
Experimental methods in thermo-acoustics
DOWLING, A.P. & MORGANS, A.S. - University of Cambridge, United Kingdom:
Passive and active control of combustion oscillations
GEBART, B.R. - Energy Technology Center, Sweden:
Introduction to biomass combustion and gasification
DESMET, W. – Katholieke Universiteit Leuven, Belgium:
Introduction to simulation methods for coupled vibro-acoustic analysis

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