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Updated: Aug 30, 2025
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Flapping Soft Fin Deformation Modeling using Planar Laser-Induced Fluorescence Imaging
Published on: April 28, 2022
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Experiments and numerical simulations on hovering three-dimensional flexible flapping wings
D Diaz-Arriba1,2, T Jardin1, N Gourdain1
1ISAE-Supaero, Université de Toulouse, France.
Bioinspiration & Biomimetics
|September 2, 2022
Summary
This study assesses flapping wing aerodynamics for hovering flight. Wing flexibility and mass significantly impact lift generation by altering flapping dynamics and vortex formation.
Area of Science:
- Fluid Dynamics
- Aerodynamics
- Bio-inspired Engineering
Background:
- Hovering flight in nature relies on complex wing kinematics.
- Understanding unsteady aerodynamics is crucial for bio-inspired flight.
Purpose of the Study:
- To evaluate high-fidelity experimental and numerical methods for analyzing 3D flapping wings in hover.
- To investigate the influence of mass and frequency ratios on flapping wing performance and dynamics.
Main Methods:
- High-fidelity experimental analysis.
- Numerical simulations of three-dimensional flapping wings.
- Exploration of mass and frequency ratios.
Main Results:
- Time-averaged lift increases with frequency ratio up to a point.
- Wing bending and flexibility induce phase lags, causing negative lift phases.
- Spanwise bending dominates wing dynamics, affecting wake interactions and leading-edge vortex formation.
Conclusions:
- Wing flexibility and mass ratio are critical parameters influencing hovering flight efficiency.
- The interplay between flapping frequency, mass, and wing dynamics dictates aerodynamic performance.
- Understanding these complex interactions is key for designing efficient flapping-wing systems.
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