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unicfdlab / libAcoustics

libAcoustics - OpenFOAM library for far-field noise computation
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acoustics aero caa computational curle fwh libacoustics openfoam openfoam-library

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Contents

  1. About libAcoustics library
  2. Available versions of the library
  3. Tutorials and examples
  4. Published papers related to libAcoustics technology
  5. For citation

About libAcoustics library

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The libAcoustics - library for far-field noise computation. At current time contains 3 kind of far-field prediction models:

  1. Curle analogy

    Based on equation 3.3 from Curle N. (1955)

  2. Ffowcs Williams Hawkings analogy

  3. CFD-BEM coupling

Tutorials and examples

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The libAcoustics source code tutorial, which was prepared in Chalmers University

Some examples are presented in the conference paper Epikhin A.(2021)

libAcoustics library Wiki (in progress)

Available versions of the library

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We currently support the library for the OpenFOAM+ versions. Current Release

The library is available for next OpenFOAM versions:

Note: Please use the v2012 or v2112 versions because we fixed some bugs in them that were present in earlier implementations.

Published materials related to libAcoustics library

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Title Description
Investigation of noise reduction effects of individual and combined geometrical modifications on UAM propeller blades: Article UAM propeller blade geometry
Low-Noise Airfoils for Turbomachinery Applications: Two Examples of Optimization: Article Isosurface for the optimal high-Reynolds airfoil
Hydroacoustics of turbulent flow over superhydrophobic and oscillating cylinders: Article Q-criterion and flow structures
Evaluation of different FW-H surfaces and modal decomposition techniques for the acoustic analysis of UAV propellers through detached eddy simulations: Article FW-H surfaces: cylinders (in red) and spheres (in blue)
Numerical investigation of noise suppression and amplification in forced oscillations of single and tandem cylinders in high Reynolds number turbulent flows: Article Flow fields around cylinders
Numerical Study of Cavitation Noise Around NACA66 (MOD) Hydrofoil with Direct Volume Integration: Article The cavity near hydrofoil
AeroSPEED: a high order acoustic solver for aeroacoustic applications: Article AeroSPEED
Numerical investigation of splitter plates as noise reduction techniques for tandem cylinders: Article The mesh around cylinders
Comparison of Porous and Direct Volumetric Integration FW-H Formulation for Acoustic Prediction: Article ---
Prediction & Active Control of Multi-Rotor Noise: MSc Thesis Schematic of various multi-rotor noise sources
Noise prediction of a single-stream under-expanded jet in OpenFOAM: Article ---
Numerical Simulation of Supersonic Jet Noise Using Open Source Software: Article ---
Evaluation of Synthetic Jet Flow Control Technique for Modulating Turbulent Jet Noise: Article Coherent structures obtained using Q-criterion
Numerical Investigation on Aerodynamic Noise of Flow past a Cylinder with Different Spanwise Lengths: Article A Q-criterion for different size cylinders
Aerodynamic and Acoustic Analysis of Multiple Rotors in Different Configurations: Article ---
Numerical investigation of noise suppression and amplification in forced oscillations of single and tandem cylinders in high Reynolds number turbulent flows Q criterion contours
CFD-based Aerodynamic and Aeroacoustic Analysis of Large Payload Multi-Copter Rotors: Article TKE plots and spectra
Simulations of multi-rotor interaction noise at hovering & forward flight conditions: Article ---
Towards a low-noise axial fan for automotive applications: Article Test rig isometry and sketches
Numerical Study of the Impact of Fluid–Structure Interaction on Flow Noise over a Rectangular Cavity: Article Modes of a cavity walls
Validating Confined Flame Noise Simulation Using External Sensor: Article Contour of flame temperature
Numerical Study of Cavitation Noise Around 2-D Hydrofoil with Direct Volume Integration: Article ---
Prediction of the flow and acoustic fields generated by an isolated propeller: Article A propeller isometric view
Implementation of the FWH aero-acoustic analogy for sector analysis of an axi-symmetric turbomachine: Tutorial wedge domain
Prediction of infrasound emission from horizontal axus wind turbines: MSc Thesis Computational method scketch
Influence of the elastic cavity walls on cavity flow noise: Article flexible cavity instant velocity field
A Computational Study on the Aeroacoustics of a Multi-Rotor Unmanned Aerial System: Article Unmanned Aerial System
Numerical Study of Iced Airfoil Aeroacoustics Using IDDES: Article Q-criterion around wing
Wall-modeled large-eddy simulation of a trailing-edge serration–finlet configuration: Article Streamwise vector plots in the serration–finlet configuration
The Eulerian–Lagrangian Approach for the Numerical Investigation of an Acoustic Field Generated by a High-Speed Gas-Droplet Flow: Article Jet with particles Logo
Jet Noise in Airframe Integration and Shielding: Article Emittance of acoustic waves by jet near wing
Validation of the developed open-source library for far-field noise prediction: Article Domain parameters: (a) boundary conditions; (b) mesh configuration and FW-H surface.
Broadband noise prediction using large eddy simulation and a frequency domain method): Article Span-wise vorticity contour
The numerical simulation of compressible jet at low Reynolds number using OpenFOAM: Article Sound pressure level directivity distributions for M = 0.9, Re = 3600
Wing airfoil selection and optimization for the tourist class reusable space vehicle: Article ---
Coupled CFD-based Shape Optimization of a Wing of Reusable Space Vehicle of Tourist Class: Article Computational scheme
Transient cavitating flow structure and acoustic analysis of a hydrofoil with whalelike wavy leading edge: Article Flow fields around wing
A proposed wavy shield for suppression of supersonic jet noise utilizing reflections Acoustic fields
Numerical Study of Flow-Induced Noise around Cylinder and Rod-NACA0012 Hydrofoil ---
Simulations of Noise Generated by Rotor-Rotor Interactions at Static Conditions ---
Investigating the Impact of Water Injection on Noise Generation During Rocket Lift-Off ---
Prediction of the Free Jet Noise Using Quasi-gas Dynamic Equations and Acoustic Analogy: Article QGDFoam instant jet velocities
Simulations of Broadband Noise of a Small UAV Propeller: Article ---
Analysis Methods and Design Measures for the Reduction of Noise and Vibration Induced by Marine Propellers: Article Vortices after propeller thruster
Prediction of Noise Associated with an Isolated UAV Propeller: MSc Thesis Velocity vectors around wing
High-Fidelity Simulations of Noise Generation in a Propeller-Driven Unmanned Aerial Vehicle: Article ---
Análise e validação de modelo de simulação numérica para previsão de ruído aerodinâmico utilizando OpenFOAM e Libacoustics: MSc Thesis acoustic field around tandem

For citation

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If you have found the software useful for your research, please cite next sources: