35th Congress of the International Council of the Aeronautical Sciences

03.3 - Basic Fluid Dynamics and Flow Control

THIN AEROFOILS OSCILLATING IN A CONFINED INVISCID FLOW

J. Mourad¹, V. Ferrand¹, E. Gowree¹; ¹ISAE-Supaero, France

Confinement effects strongly influence aerodynamic measurements in wind tunnels by accelerating the flow and altering wake development. This work presents an unsteady vortex-lattice solver to model two oscillating aerofoils in confined inviscid flow. Confinement is represented using mirror and blockage methods, allowing wake deformation and wake–wall interaction. Validation against literature and in-house experiments shows good agreement and highlights the impact of reduced frequency, spacing, and oscillation amplitude on gust intensity and wake structure.


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DOI: 10.71945/icas2026_0637