Aero-Structural Coupling Strategy for a Morphing Blade Cascade Study

Abstract The coupling of aerodynamics and structural mechanics is an important step in the design process aeronautical devices with morphing parts. In this article, a 2D–3D approach developed to study blade cascade. Two shape memory alloy actuators are placed on upper lower sides make possible change leading edge. present study, preliminary conducted by considering two-dimensional computational fluid dynamics (CFD) analysis airfoil cascade coupled three-dimensional whole 3D blade. A methodology match 2D meshes such that aerodynamic loads can be easily transferred analysis. From there, deformed geometry due both actuator work back CFD solver, iterative aero-structural loop repeated until convergence. strategy also applied aiming improve its performance leading-edge results application show only few millimeters (less than 2 mm), it achieve relevant improvement terms total pressure loss coefficient decrease about 53% off-design conditions.