Last week, Simon, Thomas, Jakob, and Kilian joined the ERCOFTAC SIG 39 Conference in Rome, focused on Coherent Structures in Aeroacoustics. It was a great opportunity to present our recent work using FELiCS to the research community.
In a noteworthy study, Simon continued his work on trailing edge noise of airfoils, which he had shared at previous conferences (AIAA in San Diego, ERCOFTAC SIG 33 in Alghero). By implementing a fully compressible linear resolvent analysis in FELiCS, he established a direct link between the far-field noise emissions of an airfoil and the coherent structures in the air foil wake. Compared to earlier hybrid approaches that combined FELiCS with analytical acoustic analogies, this fully integrated approach now enables FELiCS to directly address trailing edge noise emissions.
Thomas presented his latest work on turbulence modeling in a linear framework. He demonstrated that, for density-varying flows, linearizing around the Favre average rather than the Reynolds average greatly simplifies the closure problem in the linearized equations. He also connected this insight to the concept of mean field ambiguity, a topic recently explored by colleagues from PPrime and CalTech. This connection was well received and sparked a lively discussion.
Finally, Jakob rounded off the talks on linear analysis by sharing his recent results on optimizing eddy viscosity to model the dynamics in a turbulent jet flow using resolvent analysis.
With these presentations, we proudly represented FELiCS and TU Berlin, holding our colours high in Rome. Thank you Peter Jordan and Matteo Mancinelli for organising this amazing workshop!