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Computational aeroacoustics - VKI LS 2006-05

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VKI LS 2006-05, Computational aeroacoustics, ISBN 2-930389-67-2

Computational aeroacoustics - VKI LS 2006-05

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Computational Aeroacoustics

Aeroacoustics is a fast evolving subject, implied in fields as various as transport (airplane and road vehicles) or environment (wind turbines) for example. This EU sponsored course (EUA4X) notes are intended to provide the state-of-the-art review of the on-going activities in noise prediction, in a form accessible to both researchers and industrial engineers.

The emphasis is put on recent theoretical and numerical developments, characterized by different levels of approximation: Direct methods for CAA based on Direct Numerical Simulation (DNS), Large Eddy Simulation (LES) and Detached Eddy Simulation (DES); URANS solution of the Navier-Stokes equations; Hybrid methods based on CFD for sound production combined with linearized methods for far field sound radiation (Lighthill and Ffowcs-Williams analogies, Kirchhoff integral method, ...).
Introductory courses present each of the different approaches. Then, test cases of noise prediction are considered in different fields, such as automotive, turbomachinery, wind turbines, aeronautics and aerospace (trailing edge noise, high speed flows with shocks, …). These test cases have been chosen to illustrate the abilities of the different approaches, allowing an evaluation of their performances and applicability.

The authors of the lecture notes are inspiring and world-wide recognized scientists at the forefront of new developments.

Table of content
  • ROGER, M. - Ecole Centrale de Lyon, France:
    Aeroacoustics - some theoretical background.
    The acoustic analogy
    Noise from moving surfaces SCHRAM, C. - LMS International, Belgium:
    Vortex sound theory and application to jet noise prediction
  • COLONIUS, T. - California Institute of Technology, USA:
    Computational aeroacoustics: overview and numerical methods
  • SCHRÖDER, W.1; EWERT, R.2; BUI, T.P.1; GRÖSCHEL, E.1 - 1RWTH Aachen, Germany & 2DLR, Germany:
    An LES-APE approach in computational aeroacoustics: theory and applications
  • PIROZZOLI, S. - Università di Roma ‘La Sapienza’, Italy:
    CAA for flow/acoustic interaction and high speed flows with shocks
    Shock/vortex and shock/turbulence interactions
  • WANG, M. - University of Notre Dame, USA:
    Aeroacoustic computation using large-eddy simulation and acoustic analogy
  • SCHRAM, C. & DESMET, W. - LMS International & Katholieke Universiteit Leuven, Belgium:
    Interfacing a boundary element method with low-order CFD and automotive examples
  • GOLLIARD, J.; VAN LIER, L.; VEDY, E. - TNO Science and Industry, The Netherlands:
    Generation of unsteady aeroacoustic source from steady CFD
  • GOLLIARD, J.; VAN BEEK, P.J.; VEDY, E.; VAN LIER, L. - TNO Science and Industry, The Netherlands:
    Going further with the hybrid method: input for industry-standard methods
  • ROGER, M. - Ecole Centrale de Lyon, France:
    On the noise from open rotors
    Duct acoustics and turbomachinery noise

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Manufacturer von Karman Institute for Fluid Dynamics

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