A panel method free-wake code for aeroelastic rotor predictions

作者：Roura M^*; Cuerva A; Sanz Andres A; Barrero Gil A

来源：Wind Energy, 2010, 13(4): 357-371.

DOI：10.1002/we.358

• vortex model
• panel method
• free-wake
• aeroelasticity
• NREL experiments
• rotor

A panel method free-wake model to analyse the rotor flapping is presented. The aerodynamic model consists of a panel method, which takes into account the three-dimensional rotor geometry, and a free-wake model, to determine the wake shape. The main features of the model are the wake division into a near-wake sheet and a far wake represented by a single tip vortex, and the modification of the panel method formulation to take into account this particular wake description. The blades are considered rigid with a flap degree of freedom. The problem solution is approached using a relaxation method, which enforces periodic boundary conditions. Finally, several code validations against helicopter and wind turbine experimental data are performed, showing good agreement.

• 出版日期2010-5