Journal article
Validation of a three-dimensional viscous-inviscid interactive solver for wind turbine rotors
MIRAS is a newly developed computational model that predicts the aerodynamic behavior of wind turbine blades and wakes subject to unsteady motions and viscous effects. The model is based on a three-dimensional panel method using a surface distribution of quadrilateral singularities with a Neumann no penetration condition.
Viscous effects inside the boundary layer are taken into account through the coupling with the quasi-3D integral boundary layer solver Q3UIC. A free-wake model is employed to simulate the vorticity released by the blades in the wake. In this paper the new code is validated against measurements and/or CFD simulations for five wind turbine rotors, including three experimental model rotors [20-22], the 2.5 MW NM80 machine [23] and the NREL 5 MW virtual rotor [24].
Such a broad set of operational conditions and rotor sizes constitutes a very challenging validation matrix, with Reynolds numbers ranging from 5.0·104 to 1.2·107.
Language: | English |
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Year: | 2014 |
Pages: | 78-92 |
ISSN: | 18790682 and 09601481 |
Types: | Journal article |
DOI: | 10.1016/j.renene.2014.04.001 |
ORCIDs: | Ramos García, Néstor , Sørensen, Jens Nørkær and Shen, Wen Zhong |
Free wake Integral boundary layer equations Panel method Viscous-inviscid interaction Wind turbine