Overview of the research activities of the Department of Hydrodynamic Systems and Flow Stability Research Group
Tid: To 2026-06-18 kl 10.30
Plats: Faxén, Teknikringen 8
Videolänk: https://kth-se.zoom.us/j/3366544548
Medverkande: Prof. György Paál, Dr. Péter Nagy (Budapest University of Technology and Economics)
Prof. György Paál:
Overview of the research activities of the Department of Hydrodynamic Systems, Budapest University of Technology and Economics (30 min)
Dr. Péter Nagy: Overview of the research activites of the Flow Stability Research Group of the Department of Hydrodynamic Systems, Budapest University of Technology and Economics (30 min)
The primary focus is on the aeroacoustic modeling and laminar-turbulent transition. We first investigate the feedback mechanism within the edge-tone configuration—evaluating the relative dominance of vortices versus sound—and introduce a simplified aeroacoustic model of a recorder. Furthermore, we present numerical results demonstrating the delay of natural laminar-turbulent transition in a flat-plate boundary layer. This includes the suppression of Tollmien-Schlichting waves utilizing elastic coatings, miniature vortex generators (MVGs), and free-stream vortex generators. Finally, the presentation concludes with a discussion on recent advancements in modeling and predicting subcritical transitions.