Authors:
Dr. Carlos Simao Ferreira | Delft University of Technology | Netherlands
Alvaro Gonzalez | Netherlands
Daniel Baldacchino | Netherlands
Maria Aparicio | Netherlands
Sugoi Gomez
Xavier Munduate | Netherlands
Nestor Garcia | Netherlands
Jens Sorensen | Netherlands
Eva Jost | Netherlands
Simon Knecht | Netherlands
Thorsten Lutz | Netherlands
Petros Chassapogiannis | Netherlands
Konstantinos Diakakis | Netherlands
John Prospathopoulos | Netherlands
Spyros Voutsinas | Netherlands
Thijs Gillebaar | Netherlands
Alexander van Zuijlen | Netherlands
Giorgos Papadakis | Netherlands
Marion Reijerkerk | Netherlands
The FP7 AdVanced Aerodynamic Tools for lArge Rotors - Avatar project aims to develop and validate advanced aerodynamic models, to be used in integral design codes for the next generation of large scale wind turbines (10-20MW). One of the approaches towards reaching rotors for 10 20MW size is the application of flow control devices, such as flaps. In Task 3.2: Development of aerodynamic codes for modelling of flow devices on aerofoils and rotors of the Avatar project, aerodynamic codes are benchmarked and validated against the experimental data of a DU95W180 airfoil in steady and unsteady flow, for different angle of attack and flap settings, including unsteady oscillatory trailing-edge-flap motion, carried out within the framework of WP3: Models for Flow Devices and Flow Control, Task 3.1: CFD and Experimental Database. The aerodynamics codes are: AdaptFoil2D, Foil2W, FLOWer, MaPFlow, OpenFOAM, Q3uic, ATEFlap . The codes include unsteady Eulerian CFD simulations with grid deformation, panel models and indicial engineering models. The validation cases correspond to 18 steady flow cases, and 42 unsteady flow cases, for varying angle of attack, flap deflection and reduced frequency, with free and forced transition. The validation of the models show varying degrees of agreement, varying between models and flow cases.