4.7 Review

The third golden age of aeroacoustics

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Article Acoustics

Optimization of trailing-edge serrations with and without slits for broadband noise reduction

Pavel Kholodov et al.

Summary: The study focuses on the single-objective surrogate-based optimization of trailing-edge serrations using Ayton's analytical model. The parametric study investigates the main effects of serration amplitude, wavelength, and shape curvature, with the spanwise coherence length of wall-pressure fluctuations acting as a filter for cut-on modes. The optimal shape of serrations changes smoothly with increasing wavelength, and the effect of slits is found to be additive to the main shape, particularly after 1000 Hz.

JOURNAL OF SOUND AND VIBRATION (2021)

Article Mechanics

Experimental investigation of aerofoil tonal noise at low Mach number

Prateek Jaiswal et al.

Summary: This study experimentally investigated aerofoil tones emitted by a controlled-diffusion aerofoil at low Mach number, moderate Reynolds number, and moderate incidence. The research identified acoustic source mechanisms, boundary-layer instability, and the role of modal decomposition in aerofoil tonal noise generation. The findings suggest that flow instability and modal shapes play a crucial role in aerofoil tonal noise.

JOURNAL OF FLUID MECHANICS (2021)

Article Engineering, Aerospace

Large-Eddy Simulation of a Single Airfoil Tip-Leakage Flow

Regis Koch et al.

Summary: The large-eddy simulation identifies the main noise source in the tip gap, showing that the scraping of turbulent structures along the tip edge is an efficient noise mechanism.

AIAA JOURNAL (2021)

Article Acoustics

Predicting the propagation of acoustic waves using deep convolutional neural networks

Antonio Alguacil et al.

Summary: A novel data-driven method using neural networks for numerically propagating acoustic waves in two-dimensional quiescent media has been developed, showing improved prediction accuracy by including physical information, especially when facing unseen initial conditions during training.

JOURNAL OF SOUND AND VIBRATION (2021)

Article Computer Science, Interdisciplinary Applications

On the generation of turbulent inflow for hybrid RANS/LES jet flow simulations

F. Gand et al.

Summary: This study evaluates a low-noise turbulence generation method to produce three-dimensional resolved turbulence at the exit of a jet nozzle. Combining the turbulence generation method with ZDES mode 3 produces satisfying levels of resolved turbulence. In comparison, ZDES mode 2 simulations display quick development of three-dimensional turbulence in the mixing layer. These results provide insights on the level of turbulent modeling needed for jet flow simulations.

COMPUTERS & FLUIDS (2021)

Article Mechanics

Rapid distortion theory of turbulent flow around a porous cylinder

R. Zamponi et al.

Summary: The study examines the distortion of homogeneous isotropic turbulence interacting with a porous cylinder using rapid distortion theory (RDT). The impact of porosity on the velocity field is investigated through analysis of one-dimensional spectra and velocity variance. It is found that the porous surface reduces the blocking effect of the cylinder on incoming turbulence and alters the vorticity deformation caused by mean flow, resulting in attenuation of low-frequency spectrum components and amplification of high-frequency components.

JOURNAL OF FLUID MECHANICS (2021)

Article Acoustics

Numerical investigation of leading edge noise reduction on a rod-airfoil configuration using porous materials and serrations

Christopher Teruna et al.

Summary: A lattice-Boltzmann method was used to study aeroacoustics and aerodynamics of airfoils with different leading edge treatments, finding that porous leading edge reduces noise by decreasing blockage effect, while leading edge serrations promote destructive interference of noise sources along the span. Both treatments have similar effects on broadband noise reduction, but serrations perform better when applied against inflow with tonal characteristic.

JOURNAL OF SOUND AND VIBRATION (2021)

Review Engineering, Aerospace

Turbulent boundary layer trailing-edge noise: Theory, computation, experiment, and application

Seongkyu Lee et al.

Summary: This article covers virtually the entire landscape of modern research into trailing-edge noise including theoretical developments, numerical simulations, wind tunnel experiments, and applications of trailing-edge noise. The review discusses theoretical and numerical approaches as well as noise control methods for mitigating trailing-edge noise.

PROGRESS IN AEROSPACE SCIENCES (2021)

Article Mechanics

Numerical analysis of a 3-D printed porous trailing edge for broadband noise reduction

C. Teruna et al.

Summary: Lattice Boltzmann simulations were used to investigate the noise mitigation mechanisms of a 3-D printed porous trailing-edge insert, revealing that the porous insert achieves substantial noise reduction at low frequencies but may lead to a slight increase at high frequencies. The segment near the tip of the insert plays a dominant role in promoting noise mitigation.

JOURNAL OF FLUID MECHANICS (2021)

Article Mechanics

Acoustic tones in the near-nozzle region of jets: characteristics and variations between Mach numbers 0.5 and 2

Christophe Bogey

Summary: This study investigates the acoustic characteristics of jet nozzles for Mach numbers between 0.50 and 2 using large-eddy simulations. Peaks are observed near the nozzles, with tonal qualities at higher Mach numbers and broader qualities at lower Mach numbers. The frequencies of these peaks are related to azimuthal modes and remain consistent with the predicted frequency bands for upstream-propagating guided jet waves.

JOURNAL OF FLUID MECHANICS (2021)

Article Engineering, Aerospace

Wall-Resolved Large-Eddy Simulation of a Three-Element High-Lift Airfoil

M. Terracol et al.

AIAA JOURNAL (2020)

Article Engineering, Aerospace

Shock Wave Generation and Radiation from a Turbofan Engine Under Flow Distortion

M. Daroukh et al.

AIAA JOURNAL (2020)

Article Engineering, Aerospace

Overview of the Use of Large-Eddy Simulations in Jet Aeroacoustics

Anastasios S. Lyrintzis et al.

AIAA JOURNAL (2020)

Article Mechanics

Noise reduction mechanisms of an open-cell metal-foam trailing edge

C. Teruna et al.

JOURNAL OF FLUID MECHANICS (2020)

Article Acoustics

Effect of porous material on trailing edge sound sources of a lifting airfoil by zonal Overset-LES

V. B. Ananthan et al.

JOURNAL OF SOUND AND VIBRATION (2020)

Article Acoustics

A study of noise reduction mechanisms of jets with fluid inserts

Chitrarth Prasad et al.

JOURNAL OF SOUND AND VIBRATION (2020)

Article Thermodynamics

Reduced-order analysis of the acoustic near field of a ducted axial fan

Seyed Mohsen Alavi Moghadam et al.

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW (2020)

Article Computer Science, Interdisciplinary Applications

Analysis and reduction of spurious noise generated at grid refinement interfaces with the lattice Boltzmann method

Thomas Astoul et al.

JOURNAL OF COMPUTATIONAL PHYSICS (2020)

Article Mechanics

Effect of serrated trailing edges on aerofoil tonal noise

Matthieu B. R. Gelot et al.

JOURNAL OF FLUID MECHANICS (2020)

Article Acoustics

Trailing -edge broadband noise prediction of an airfoil with boundary -layer tripping

Julian Winkler et al.

JOURNAL OF SOUND AND VIBRATION (2020)

Article Acoustics

On the role of turbulence distortion on leading-edge noise reduction by means of porosity

R. Zamponi et al.

JOURNAL OF SOUND AND VIBRATION (2020)

Article Acoustics

On the noise generated by a controlled-diffusion aerofoil at Rec=1.5 x 105

Hao Wu et al.

JOURNAL OF SOUND AND VIBRATION (2020)

Article Computer Science, Interdisciplinary Applications

A characteristic inlet boundary condition multispecies turbomachinery flows

Nicolas Odier et al.

COMPUTERS & FLUIDS (2019)

Article Acoustics

Aeroacoustic study of a wavy stator leading edge in a realistic fan/OGV stage

Damiano Casalino et al.

JOURNAL OF SOUND AND VIBRATION (2019)

Article Acoustics

Large Eddy Simulation of a scale-model turbofan for fan noise source diagnostic

Carlos Perez Arroyo et al.

JOURNAL OF SOUND AND VIBRATION (2019)

Article Engineering, Aerospace

Large eddy simulation of turbulent jet controlled by two pulsed jets: Effect of forcing frequency

Bo Kong et al.

AEROSPACE SCIENCE AND TECHNOLOGY (2019)

Article Acoustics

Azimuthal mode analysis of broadband shock-associated noise in an under-expanded axisymmetric jet

Carlos Perez Arroyo et al.

JOURNAL OF SOUND AND VIBRATION (2019)

Article Engineering, Aerospace

Validation of Jet Noise Simulations and Resulting Insights of Acoustic Near Field

W. C. P. van der Velden et al.

AIAA JOURNAL (2019)

Article Nanoscience & Nanotechnology

Turbulent flow and noise sources on a circular cylinder in the critical regime

Chaofan Zhang et al.

AIP ADVANCES (2019)

Review Multidisciplinary Sciences

Modelling of jet noise: a perspective from large-eddy simulations

Guillaume A. Bres et al.

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES (2019)

Article Engineering, Mechanical

Tonal Noise Prediction of a Modern Turbofan Engine With Large Upstream and Downstream Distortion

Majd Daroukh et al.

JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME (2019)

Article Acoustics

Direct Noise Computation of Low-speed Ring Fans

Stephane Moreau

ACTA ACUSTICA UNITED WITH ACUSTICA (2019)

Review Acoustics

Turbomachinery Noise Predictions: Present and Future

Stephane Moreau

ACOUSTICS (2019)

Article Engineering, Aerospace

Turbofan Broadband Noise Prediction Using the Lattice Boltzmann Method

D. Casalino et al.

AIAA JOURNAL (2018)

Article Engineering, Aerospace

Unsteady Simulations of a Fan/Outlet-Guide-Vane System: Aerodynamics and Turbulence

Michael Shur et al.

AIAA JOURNAL (2018)

Article Computer Science, Interdisciplinary Applications

Isothermal and heated subsonic jet noise using large eddy simulations on unstructured grids

M. Zhu et al.

COMPUTERS & FLUIDS (2018)

Article Mechanics

Noise reduction mechanisms of sawtooth and combed-sawtooth trailing-edge serrations

F. Avallone et al.

JOURNAL OF FLUID MECHANICS (2018)

Article Mechanics

Importance of the nozzle-exit boundary-layer state in subsonic turbulent jets

Guillaume A. Bres et al.

JOURNAL OF FLUID MECHANICS (2018)

Article Acoustics

Numerical analysis of the impact of permeability on trailing-edge noise

Seong Ryong Koh et al.

JOURNAL OF SOUND AND VIBRATION (2018)

Article Acoustics

Optimization of tonal noise control with flow obstruction

Stephane Moreau et al.

JOURNAL OF SOUND AND VIBRATION (2018)

Article Acoustics

Advanced noise modeling for future propulsion systems

Stephane Moreau et al.

INTERNATIONAL JOURNAL OF AEROACOUSTICS (2018)

Article Mechanics

Direct noise prediction and control of an installed large low-speed radial fan

Marlene Sanjose et al.

EUROPEAN JOURNAL OF MECHANICS B-FLUIDS (2017)

Article Acoustics

Computation of the self-noise of a controlled-diffusion airfoil based on the acoustic analogy

P. Martinez-Lera et al.

INTERNATIONAL JOURNAL OF AEROACOUSTICS (2017)

Article Physics, Fluids & Plasmas

Silent inflow condition for turbulent boundary layers

X. Gloerfelt et al.

PHYSICAL REVIEW FLUIDS (2017)

Article Engineering, Aerospace

Effect of Weak Outlet-Guide-Vane Heterogeneity on Rotor-Stator Tonal Noise

Marlene Sanjose et al.

AIAA JOURNAL (2017)

Article Computer Science, Interdisciplinary Applications

Synthetic turbulence methods for computational aeroacoustic simulations of leading edge noise

Fernando Gea-Aguilera et al.

COMPUTERS & FLUIDS (2017)

Article Engineering, Aerospace

Effect of Distortion on Turbofan Tonal Noise at Cutback with Hybrid Methods

Majd Daroukh et al.

INTERNATIONAL JOURNAL OF TURBOMACHINERY PROPULSION AND POWER (2017)

Article Mechanics

Acoustic resonance in the potential core of subsonic jets

Aaron Towne et al.

JOURNAL OF FLUID MECHANICS (2017)

Article Engineering, Aerospace

Investigation of the Unsteady Flow and Noise Generation in a Slat Cove

M. Terracol et al.

AIAA JOURNAL (2016)

Article Computer Science, Interdisciplinary Applications

Parameterization and optimization of broadband noise for high-lift devices

A. Fosso Pouangue et al.

COMPUTERS & FLUIDS (2016)

Article Mechanics

Noise generation mechanisms for a supersonic jet impinging on an inclined plate

Christoph Brehm et al.

JOURNAL OF FLUID MECHANICS (2016)

Article Acoustics

Direct noise simulation of a canonical high lift device and comparison with an analytical model

Pablo Salas et al.

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA (2016)

Article Acoustics

Tonal noise of a controlled-diffusion airfoil at low angle of attack and Reynolds number

Thomas Padois et al.

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA (2016)

Article Acoustics

Sub-harmonic broadband humps and tip noise in low-speed ring fans

Stephane Moreau et al.

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA (2016)

Article Acoustics

Zonal large-eddy simulation of a tip leakage flow

Jerome Boudet et al.

INTERNATIONAL JOURNAL OF AEROACOUSTICS (2016)

Article Engineering, Aerospace

Noise Source Analysis of a Rod-Airfoil Configuration Using Unstructured Large-Eddy Simulation

Jean-Christophe Giret et al.

AIAA JOURNAL (2015)

Article Engineering, Aerospace

Uncertainty Quantification for the Trailing-Edge Noise of a Controlled-Diffusion Airfoil

J. Christophe et al.

AIAA JOURNAL (2015)

Article Engineering, Aerospace

Subsonic Jet Noise Simulations Using Both Structured and Unstructured Grids

A. Fosso Pouangue et al.

AIAA JOURNAL (2015)

Article Thermodynamics

Compressible-Flow DNS with Application to Airfoil Noise

R. D. Sandberg

FLOW TURBULENCE AND COMBUSTION (2015)

Article Mechanics

Large-eddy simulations of plasma-based asymmetric control of supersonic round jets

D. R. Gonzalez et al.

INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS (2015)

Article Acoustics

Single velocity-component modeling of leading edge turbulence interaction noise

J. Gill et al.

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA (2015)

Article Acoustics

Direct numerical simulation of fluid-acoustic interactions in a recorder with tone holes

Hiroshi Yokoyama et al.

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA (2015)

Article Acoustics

Subharmonic tonal noise from backflow vortices radiated by a low-speed ring fan in uniform inlet flow

Stephan Magne et al.

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA (2015)

Article Acoustics

Tonal noise prediction and validation on the ANC Frotor-stator configuration

Marlene Sanjose et al.

NOISE CONTROL ENGINEERING JOURNAL (2015)

Article Acoustics

Aerodynamics and aeroacoustics study of the flow around an automotive fan airfoil

Rabea Matouk et al.

INTERNATIONAL JOURNAL OF AEROACOUSTICS (2015)

Article Acoustics

Jet noise simulations for complex nozzle geometries

Ravi Ramamurti et al.

INTERNATIONAL JOURNAL OF AEROACOUSTICS (2015)

Review Audiology & Speech-Language Pathology

ICBEN review of research on the biological effects of noise 2011-2014

Mathias Basner et al.

NOISE & HEALTH (2015)

Review Cardiac & Cardiovascular Systems

Cardiovascular effects of environmental noise exposure

Thomas Muenzel et al.

EUROPEAN HEART JOURNAL (2014)

Article Acoustics

Facing rim cavities fluctuation modes

Damiano Casalino et al.

JOURNAL OF SOUND AND VIBRATION (2014)

Review Multidisciplinary Sciences

A second golden age of aeroacoustics?

Sanjiva K. Lele et al.

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES (2014)

Article Acoustics

Symmetric airfoil geometry effects on leading edge noise

James Gill et al.

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA (2013)

Article Engineering, Aerospace

Unsteady Flow Analysis of a Multi-Element Airfoil Using Lattice Boltzmann Method

Rajani Satti et al.

AIAA JOURNAL (2012)

Article Engineering, Aerospace

Large Eddy Simulation of Supersonic Impinging Jets

A. Dauptain et al.

AIAA JOURNAL (2012)

Article Engineering, Aerospace

Large-Eddy Simulation of Complex Geometry Jets

Simon Eastwood et al.

JOURNAL OF PROPULSION AND POWER (2012)

Article Acoustics

Addendum to the back-scattering correction of Amiet's trailing-edge noise model

Michel Roger et al.

JOURNAL OF SOUND AND VIBRATION (2012)

Article Mechanics

Flow and noise predictions for the tandem cylinder aeroacoustic benchmark

Guillaume A. Bres et al.

PHYSICS OF FLUIDS (2012)

Article Acoustics

High-fidelity numerical simulation of a chevron nozzle jet flow

Ali Uzun et al.

INTERNATIONAL JOURNAL OF AEROACOUSTICS (2011)

Article Engineering, Aerospace

Almost 40 Years of Airframe Noise Research: What Did We Achieve?

Werner Dobrzynski

JOURNAL OF AIRCRAFT (2010)

Article Computer Science, Interdisciplinary Applications

Nonuniform time-step Runge-Kutta discontinuous Galerkin method for Computational Aeroacoustics

Li Liu et al.

JOURNAL OF COMPUTATIONAL PHYSICS (2010)

Article Acoustics

Progress in direct noise computation

Christophe Bailly et al.

INTERNATIONAL JOURNAL OF AEROACOUSTICS (2010)

Article Acoustics

Aeroacoustic investigation of a single airfoil tip leakage flow

M. C. Jacob et al.

INTERNATIONAL JOURNAL OF AEROACOUSTICS (2010)

Article Computer Science, Interdisciplinary Applications

Comparison between lattice Boltzmann method and Navier-Stokes high order schemes for computational aeroacoustics

Simon Marie et al.

JOURNAL OF COMPUTATIONAL PHYSICS (2009)

Article Acoustics

LES prediction of wall-pressure fluctuations and noise of a low-speed airfoil

Meng Wang et al.

INTERNATIONAL JOURNAL OF AEROACOUSTICS (2009)

Article Engineering, Aerospace

Current status of jet noise predictions using large-eddy simulation

Daniel J. Bodony et al.

AIAA JOURNAL (2008)

Article Thermodynamics

On the use of embedded meshes in the LES of external flows

Y. Addad et al.

FLOW TURBULENCE AND COMBUSTION (2008)

Article Engineering, Aerospace

Competing broadband noise mechanisms in low-speed axial fans

Stephane Moreau et al.

AIAA JOURNAL (2007)

Article Engineering, Aerospace

Heterogeneous domain decomposition for computational aeroacoustics

J. Utzmann et al.

AIAA JOURNAL (2006)

Article Mechanics

A rod-airfoil experiment as a benchmark for broadband noise modeling

MC Jacob et al.

THEORETICAL AND COMPUTATIONAL FLUID DYNAMICS (2005)

Review Engineering, Aerospace

Computational aeroacoustics: progress on nonlinear problems of sound generation

T Colonius et al.

PROGRESS IN AEROSPACE SCIENCES (2004)

Article Mechanics

Expanded analogy between Boltzmann kinetic theory of fluids and turbulence

HD Chen et al.

JOURNAL OF FLUID MECHANICS (2004)

Article Engineering, Aerospace

Analysis of flow conditions in freejet experiments for studying airfoil self-noise

S Moreau et al.

AIAA JOURNAL (2003)

Article Mechanics

Noise sources in a low-Reynolds-number turbulent jet at Mach 0.9

JB Freund

JOURNAL OF FLUID MECHANICS (2001)

Article Engineering, Aerospace

Computation of trailing-edge flow and noise using large-Eddy simulation

M Wang et al.

AIAA JOURNAL (2000)

Article Engineering, Aerospace

Trailing-edge noise prediction using large-eddy simulation and acoustic analogy

E Manoha et al.

AIAA JOURNAL (2000)