Hydrodynamic interactions in tandem flapping wing systems
Year: 2025
Type: article
Abstract: We review recent studies on the hydrodynamic interactions in tandem flapping wing systems, with a focus on the interplay between vortex dynamics and structural flexibility. We examine configurations including rigid wings with prescribed motion, spanwise-flexible wings, and chordwise-flexible wings. For rigid wings, three-dimensional effects are shown to reduce thrust, but they can be mitigated through aspect ratio tuning. Flexibility introduces fluid-structure resonance phenomena that enhance aerodynamic performance. In tandem systems, performance optimization requires careful coordination: forewings benefit from resonance, while hindwings perform best with slightly stiffer configurations to effectively capture upstream wake structures. Finally, in systems of self-propelled flexible flappers, hydrodynamic interactions give rise to coordinated motion and energy savings through flow-mediated feedback.
Source: Physical Review Fluids
DOI: 10.1103/1ry9-t1rt
Authors: Oscar Flores, Manuel Garcia-Villalba
Institutions: Universidad Carlos III de Madrid, TU Wien
Language: English
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Funder: Technische Universität Wien
OpenAlex ID: W4415224282