[HTML][HTML] Cross-spectrum method for acoustic source identification and visualization of airfoil noise

D Kang, S Lee - Aerospace Science and Technology, 2024 - Elsevier
The identification and visualization of airfoil noise sources are critical for comprehending the
interplay between flow and acoustics, and for understanding the generation and …

Effect of morphed trailing edge on the acoustic and flow characteristics of National Advisory Committee for Aeronautics (NACA) 4418 airfoil

S Ding, P Liu, L Li, K Wang - Physics of Fluids, 2024 - pubs.aip.org
Trailing-edge profile has an important impact on the aeroacoustic behavior of an airfoil,
particularly the tonal noise in the low-medium Reynolds number range. Three profiles …

Sound-vortex conversion on droplets: Kinematic model of sound activated vortices

H Wang - Physics of Fluids, 2025 - pubs.aip.org
The rapid pace of urbanization across the globe has led to the proliferation of various urban
infrastructure. They generate aerodynamic noise, posing significant challenges to urban …

Airfoil tonal noise reduction by roughness elements Part I--Experimental investigation

E Alva, Z Yuan, TB Araújo, FR Amaral, A Hanifi… - arXiv preprint arXiv …, 2024 - arxiv.org
Laminar separation bubbles around airfoils lead to the growth of instability waves, which
enhances to acoustic scattering at the trailing-edge, forming a feedback loop that produces …

Wavepackets Driving Trailing Edge Noise. Part II–Resolvent-Based Model

S Demange, Z Yuan, A Cavalieri, A Hanifi… - 30th AIAA/CEAS …, 2024 - arc.aiaa.org
We present the results from a physics-based model of the trailing-edge (TE) noise radiated
by an airfoil, obtained from resolvent analysis of the turbulent mean flow. In our approach …

Coherent pressure structures in turbulent channel flow

FR do Amaral, AVG Cavalieri - Physical Review Fluids, 2024 - APS
Most of the studies on pressure fluctuations in wall-bounded turbulent flows aim at obtaining
statistics as power spectra and scaling laws, especially at the walls. In the present study we …

Cross-Spectrum Method for Acoustic Source Identification and Visualization of Airfoil Noise

S Lee, D Kang - Available at SSRN 4754073 - papers.ssrn.com
The identification and visualization of airfoil noise sources are critical for comprehending the
interplay between flow and acoustics, and for understanding the generation and …

[PDF][PDF] RESOLVENT ANALYSIS OF TRANSITIONAL AND TURBULENT FLOWS AROUND AIRFOILS FOR TRAILING-EDGE NOISE MODEL

S Demange, K Oberleithner, Z Yuan, A Hanifi… - tsfp-conference.org
We present the results of a physics-based model of the trailing-edge noise radiated by a
NACA0012 airfoil at low angle of attack, obtained from resolvent analysis of the turbulent …