Validation of a three-dimensional viscous–inviscid interactive solver for wind turbine rotors

Néstor Ramos-García, Jens Nørkær Sørensen and Wen Zhong Shen

Renewable Energy, 2014, vol. 70, issue C, 78-92

Abstract: 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.

Keywords: Wind turbine; Panel method; Free wake; Viscous–inviscid interaction; Integral boundary layer equations (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:70:y:2014:i:c:p:78-92

DOI: 10.1016/j.renene.2014.04.001

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