Investigating 3-D Flow Characteristics of Wind Turbine Airfoils using Delayed Detached Eddy Simulations at High Reynolds Numbers

Akcengiz E., Uzol N. S.

2024 Science of Making Torque from Wind, TORQUE 2024, Florence, Italy, 29 - 31 May 2024, vol.2767, (Full Text) identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 2767
  • Doi Number: 10.1088/1742-6596/2767/2/022060
  • City: Florence
  • Country: Italy
  • Middle East Technical University Affiliated: Yes

Abstract

This numerical study investigates the 3-D flow field and aerodynamic characteristics of DU 00-W-212 wind turbine airfoil at high Reynolds numbers. The Computational Fluid Dynamics (CFD) simulations are performed at Reynolds number of 3 million at three different angles of attack for the pre-stall, stall, and post-stall conditions, by using an open source CFD solver SU2. The Delayed Detached Eddy Simulations (DDES) with the Spalart-Allmaras (SA) turbulence model and Langtry-Menter (LM) transition model are performed to address the challenge of predicting unsteady flow characteristics with transition, particularly on the suction side of the airfoil. The 3-D DDES with SA results with and without LM transition model are compared with the 2-D RANS with SA simulations and available experimental data.