The Aero-Acoustics Research (A-AR) Laboratory: Overview of past, present and future work

At Cnam, Paris, November 7th 2025, 11 a.m. (seminar joined with M2N laboratory)

Joana Rocha
Professor, Aero-Acoustics Research (A-AR) Laboratory, Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa, Ontario, Canada

Dr. Joana Rocha presents an overview of the research conducted within the Aero-Acoustics Research (A-AR) Laboratory, covering developments from its inception to current investigations and future directions. The group has advanced the understanding and prediction of flow-induced noise and vibration in aerospace systems, with work spanning analytical modelling, numerical simulation, and experimental validation.

Early research focused on turbulent boundary-layer-induced noise of aircraft panels. This foundational work evolved toward experimental design and optimization of quiet airframe components, including serrated and trailing-edge geometries, finlets, and porous treatments, aimed at reducing airfoil self-noise. More recent studies have integrated computational optimization and machine-learning techniques to predict and minimize aerodynamic and aeroacoustic sources.

In parallel, the group has established and characterized subsonic and high-speed aeroacoustic wind tunnels, supporting both aerodynamic and acoustic testing of innovative concepts.Current projects include self-noise of porous materials. The presentation will highlight key results, concepts, lessons learned, and future research directions in the pursuit of sustainable and low-noise aerospace technologies.