Abstract
Many wind turbines aeroelastic codes recourse to indicial lift response formulations to evaluate unsteady aerodynamics in attached flow. The indicial response of a finitethickness airfoil differs from the flat plate one, which is usually adopted through Jones’s approximation. The lift response of airfoils with different geometries is determined with a panel code, and approximated by two term exponential functions. An empirical relation is then outlined in order to estimate the indicial response from the profile geometry. Unsteady lift computations are compared to CFD simulations for a harmonic pitching airfoil; the agreement with CFD results is improved by using the estimated indicial response instead of Jones’s flat plate expression. Finally, the effects on fatigue and ultimate loads are assessed by using the different indicial lift response function approximations in aeroelastic simulations.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
