Computational aeroacoustics: progress on nonlinear problems of sound generation

T Colonius, SK Lele - Progress in Aerospace sciences, 2004 - Elsevier
Computational approaches are being developed to study a range of problems in
aeroacoustics. These aeroacoustic problems may be classified based on the physical …

Hybrid aeroacoustic computations: State of art and new achievements

S Schoder, M Kaltenbacher - Journal of Theoretical and …, 2019 - World Scientific
This paper collects the state of the art and the tremendous progress that has been made in
hybrid modeling of aeroacoustic sound. Hybrid modeling is defined such that flow and …

Acoustic perturbation equations based on flow decomposition via source filtering

R Ewert, W Schröder - Journal of Computational Physics, 2003 - Elsevier
A family of acoustic perturbation equations is derived for the simulation of flow-induced
acoustic fields in time and space. The mean flow convection and refraction effects are part of …

Sound generation by a two-dimensional circular cylinder in a uniform flow

O Inoue, N Hatakeyama - Journal of Fluid Mechanics, 2002 - cambridge.org
The sound generated by a circular cylinder in a flow at low Mach numbers is investigated by
direct solution of the two-dimensional unsteady compressible Navier–Stokes equations …

Aeroacoustic modelling of low-speed flows

WZ Shen, JN Sørensen - Theoretical and Computational Fluid Dynamics, 1999 - Springer
A new numerical algorithm for acoustic noise generation is developed. The approach
involves two steps comprising an incompressible flow part and an inviscid acoustic part. The …

Hydrodynamic/acoustic splitting approach with flow-acoustic feedback for universal subsonic noise computation

R Ewert, J Kreuzinger - Journal of Computational Physics, 2021 - Elsevier
A generalized approach to decompose the compressible Navier-Stokes equations into an
equivalent set of coupled equations for flow and acoustics is introduced. As a significant …

Wind turbine noise generation and propagation modeling at DTU Wind Energy: A review

WJ Zhu, WZ Shen, E Barlas, F Bertagnolio… - … and Sustainable Energy …, 2018 - Elsevier
The present review paper provides a comprehensive overview of the research activities on
wind turbine aeroacoustics at DTU over the last 20 years, as well as it gives the state-of-the …

Analysis of sound generation by flow past a circular cylinder performing rotary oscillations using direct simulation approach

N Ganta, B Mahato, YG Bhumkar - Physics of Fluids, 2019 - pubs.aip.org
Generation of sound due to laminar flow past a circular cylinder performing rotary
oscillations has been studied using a direct numerical simulation approach. Two …

Computation of aeolian tone from a circular cylinder using source models

C Cheong, P Joseph, Y Park, S Lee - Applied Acoustics, 2008 - Elsevier
The generation of aeolian tones from a two-dimensional circular cylinder situated in a
uniform cross-flow is investigated. The major emphasis here is placed on identifying the …

Validations and improvements of airfoil trailing‐edge noise prediction models using detailed experimental data

M Kamruzzaman, T Lutz, W Würz, WZ Shen… - Wind …, 2012 - Wiley Online Library
This paper describes an extensive assessment and a step by step validation of different
turbulent boundary‐layer trailing‐edge noise prediction schemes developed within the …