Experimental benchmark and numerical validation of a free heaving airfoil

Experimental benchmark and numerical validation of a free heaving airfoil

Sterenborg, J.J.H.M.
Van Zuijlen, A.H.
Bijl, H.

Civil Engineering and Geosciences

Aerodynamics, Wind Energy & Propulsion

2011-06-22

In order to validate fluid-structure interaction solvers, a one degree of freedom (1 DOF) aeroelastic experiment is performed. A rigid wing with an harmonically actuated flap, is suspended by springs to allow a free heaving motion. Displacements and time dependent aerodynamic forces are measured for reduced flap frequencies ranging from k = 0.1 to k = 0.3. Simulations with three codes of different complexity level are performed for validation purposes: theodorsens model, a 2D panel code and 2D URANS, all coupled to a 1 DOF structural model. Results presented by bode diagrams, show differences in both the displacement and the lift between numerical work and experiment. Although there is an offset, consistency is found between displacements, forces and phase angles in the system for all simulations and the experiment.

heave
fluid-structure interaction
experimental benchmark
URANS
panel code
theodorsen

http://resolver.tudelft.nl/uuid:01d69325-92bb-47c9-a3dc-9d32f93eeb2a

CIMNE

978-84-89925-78-6

Coupled Problems 2011: Proceedings of the 4th International Conference on Computational Methods for Coupled Problems in Science and Engineering, Kos, Greece, 20-22 June 2011

Institutional Repository

conference paper

(c) 2011 The Author(s)