A new paper titled “Flow Structures Driving Broadband Trailing-Edge Noise: A Resolvent-Based Model” has been published in AIAA Journal. The study uses FELiCS to perform a fully compressible resolvent analysis of the LES mean flow around a NACA0012 airfoil, enabling a physics-based interpretation of broadband trailing-edge noise. https://arc.aiaa.org/doi/10.2514/1.J065730
Using FELiCS, the authors identified the wavepacket structures responsible for noise generation, demonstrated clear low-rank amplification at acoustically relevant frequencies, and showed excellent agreement with SPOD modes from high-fidelity simulations. FELiCS’ projection operators and compressible formulation were key to isolating physically meaningful boundary-layer dynamics and recovering near-field acoustic features.
This work highlights FELiCS as a powerful tool for resolvent-based aeroacoustic modelling and provides a foundation for future noise-reduction strategies.