A frequency-domain lifting-line solution algorithm for the prediction of unsteady aerodynamics wings is presented. The Biot–Savart law applied to determine normalwash generated by wake vorticity distribution, whereas steady and airfoil theories (Glauert’s Theodorsen’s, respectively) are used evaluate sectional aerodynamic loads, namely lift pitching moment. released at trailing edge derives fro...

Most of the previous studies on free-play aeroelasticity were based linear aerodynamic theory, which cannot consider nonlinear effects. This paper proposes a framework computational fluid dynamics/computational structural dynamics (CFD/CSD) coupling approach that can deal with three dimensional aeroelastic problems both nonlinearity and nonlinearity. The fictitious mass method is used to constr...