Large eddy simulations of a utility?scale horizontal axis wind turbine including unsteady aerodynamics and fluid?structure interaction modelling

Growing horizontal axis wind turbines are increasingly exposed to significant sources of unsteadiness, such as tower shadowing, yawed or waked conditions and environmental effects. Due increased dimensions, the use steady tabulated airfoil coefficients determine airloads along long blades can be questioned in those numerical fluid models that do not have sufficient resolution solve explicitly dynamically flow close blade. Various exist describe unsteady aerodynamics (UA). However, they been mainly implemented engineering models, which lack complete capability describing multiscale nature energy. To improve description blades' aerodynamic response, a 2D model is used this work estimate actuator line our fluid–structure interaction (FSI) solver, based on 3D large eddy simulation. At each section lines, semi-empirical Beddoes-Leishman includes effects noncirculatory terms, trailing edge separation, dynamic stall evaluation airfoils' coefficients. The aeroelastic response utility-scale turbine under uniform, laminar turbulent, sheared inflows examined with one- two-way FSI coupling between structural dynamics local airloads, without enhanced aerodynamics' description. results show external half blade dominated by effects, whereas internal one UA phenomena, was possible represent only thanks additional implemented.