Concise review: aerodynamic noise prediction methods and mechanisms for wind turbines

V Bhargava Nukala, CP Padhy - International Journal of …, 2023 - Taylor & Francis
Wind power plants are increasingly being installed across the world to combat energy
deficits and climate change. One of the policy constraints for installing wind turbine plants is …

Lighthill stress flux model for Ffowcs Williams–Hawkings integrals in frequency domain

Z Zhou, H Wang, S Wang, G He - AIAA Journal, 2021 - arc.aiaa.org
M= freestream Mach number Pij= compressive stress tensor po= pressure in the background
p 0= perturbation of pressure Tij= Lighthill stress tensor Ui= freestream velocity Up= phase …

Noise emitted from a generic side-view mirror with different aspect ratios and inclinations

KK Chode, H Viswanathan, K Chow - Physics of Fluids, 2021 - pubs.aip.org
Noise radiated from flow past different configurations of the half-round mirror (HRM)
mounted on a plate has been investigated using computational aeroacoustics (CAA). The …

Generation of interior cavity noise due to window vibration excited by turbulent flows past a generic side-view mirror

HD Yao, L Davidson - Physics of Fluids, 2018 - pubs.aip.org
We investigate the interior noise caused by turbulent flows past a generic side-view mirror. A
rectangular glass window is placed downstream of the mirror. The window vibration is …

Far-field approximations to the derivatives of Green's function for the Ffowcs Williams and Hawkings equation

Z Zhou, Z Zang, H Wang, S Wang - Advances in Aerodynamics, 2022 - Springer
The surface correction to the quadrupole source term of the Ffowcs Williams and Hawkings
integral in the frequency domain suffers from the computation of high-order derivatives of …

Hybrid computation of the aerodynamic noise radiated by the wake of a subsonic cylinder

B Eiximeno, C Tur-Mongé, O Lehmkuhl, I Rodríguez - Fluids, 2023 - mdpi.com
The noise radiated by the flow around a cylinder in the subcritical regime at R e D= 1× 10 4
and at a subsonic Mach number of M= 0.5 is here studied. The aerodynamic sound radiated …

[HTML][HTML] Aeroacoustics wind noise optimization for vehicle's side mirror base

MN Zaareer, AHI Mourad, T Darabseh… - International Journal of …, 2023 - Elsevier
Extreme effect of noise pollution includes deafness and mental breakdown and in main
cities automobiles are a main source of noise. The literature concentrates on the side mirror …

[HTML][HTML] Simplified permeable surface correction for frequency-domain Ffowcs Williams and Hawkings integrals

Z Zhou, H Wang, S Wang - Theoretical and Applied Mechanics Letters, 2021 - Elsevier
A simplified surface correction formulation is proposed to diminish the far-field spurious
sound generated by the quadrupole source term in Ffowcs Williams and Hawkings (FW-H) …

Vibro-acoustics response of a simplified glass window excited by the turbulent wake of a quarter-spherocylinder body

HD Yao, L Davidson - The Journal of the Acoustical Society of America, 2019 - pubs.aip.org
Inside vehicle cabins, an important part of interior noise is generated from cabin window
vibration. The vibration is stimulated by surface pressure fluctuations that are produced by …

Mass-conserved solution to the Ffowcs-Williams and Hawkings equation for compact source regions

Z Zhou, Y Liu, H Wang, S Wang - Aerospace, 2023 - mdpi.com
A mass-conserved formulation for the Ffowcs-Williams–Hawkings (FW–H) integral is
proposed to suppress contributions of spurious mass flux to the far-field sound at very low …