Bulletin of the American Physical Society
76th Annual Meeting of the Division of Fluid Dynamics
Sunday–Tuesday, November 19–21, 2023; Washington, DC
Session G04: Aerodynamics: Aeroelastic Flutter
3:00 PM–4:05 PM,
Sunday, November 19, 2023
Room: 101
Chair: Chandan Bose, University of Birmingham
Abstract: G04.00003 : Aeroelastic instabilities of a rigid flat plate impacted by an impinging air jet
3:26 PM–3:39 PM
Presenter:
Antoine Tatin
(LadHyx & Fives Stein)
Authors:
Antoine Tatin
(LadHyx & Fives Stein)
Xavier Cluzel
(Fives Stein)
Yannick Mourlot
(Fives Stein)
Pascal Hémon
(LadHyX)
Sophie Ramananarivo
(LadHyX)
We conducted a simplified experimental model with a horizontal rigid flat plate, connected to springs, allowing it to oscillate vertically. This system acts as a damped oscillator with a single degree of freedom. An air jet blows orthogonally from a rectangular nozzle to the plate. The stability of the system depends on various parameters such as the shape of the nozzle or the jet velocity, but mainly the nozzle-plate distance. Below a critical distance, the plate is unstable and starts to flutter. Experimental results lead us to develop a theoretical model for the jet added damping and stiffness term.
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