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

Néstor Ramos García, Jens Nørkær Sørensen, Wen Zhong Shen

    Research output: Contribution to journalJournal articleResearchpeer-review

    1 Downloads (Pure)


    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.

    Original languageEnglish
    JournalRenewable Energy
    Pages (from-to)78-92
    Publication statusPublished - 2014

    Bibliographical note

    Special issue on aerodynamics of offshore wind energy systems and wakes


    • Wind turbine
    • Panel method
    • Free wake
    • Viscous-inviscid interaction
    • Integral boundary layer equations


    Dive into the research topics of 'Validation of a three-dimensional viscous-inviscid interactive solver for wind turbine rotors'. Together they form a unique fingerprint.

    Cite this