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A Numerical Flutter Predictor For 3d Airfoils Using The Onera Dynamic Stall Model, Pieter Boersma
A Numerical Flutter Predictor For 3d Airfoils Using The Onera Dynamic Stall Model, Pieter Boersma
Masters Theses
To be able to harness more power from the wind, wind turbine blades are getting longer. As they get longer, they get more flexible. This creates issues that have until recently not been of concern. Long flexible wind turbine blades can lose their stability to flow induced instabilities such as coupled-mode flutter. This type of flutter occurs when increasing wind speed causes a coupling of a bending and a torsional mode, which create limit cycle oscillations that can lead to blade failure. To be able to make the design of larger blades possible, it is important to be able to …