Stabilized space-time computation of wind-turbine rotor aerodynamics

Kenji Takizawa, Bradley Henicke, Tayfun E. Tezduyar, Ming Chen Hsu, Yuri Bazilevs

    Research output: Contribution to journalArticle

    93 Citations (Scopus)

    Abstract

    We show how we use the Deforming-Spatial-Domain/Stabilized Space-Time (DSD/SST) formulation for accurate 3D computation of the aerodynamics of a wind-turbine rotor. As the test case, we use the NREL 5MW offshore baseline wind-turbine rotor. This class of computational problems are rather challenging, because they involve large Reynolds numbers and rotating turbulent flows, and computing the correct torque requires an accurate and meticulous numerical approach. We compute the problem with both the original version of the DSD/SST formulation and a recently introduced version with an advanced turbulence model. The DSD/SST formulation with the advanced turbulence model is a space-time version of the residual-based variational multiscale method. We compare our results to those reported recently, which were obtained with the residual-based variational multiscale Arbitrary Lagrangian-Eulerian method using NURBS for spatial discretization and which we take as the reference solution. While the original DSD/SST formulation yields torque values not far from the reference solution, the DSD/SST formulation with the variational multiscale turbulence model yields torque values very close to the reference solution.

    Original languageEnglish
    Pages (from-to)333-344
    Number of pages12
    JournalComputational Mechanics
    Volume48
    Issue number3
    DOIs
    Publication statusPublished - 2011 Sep

    Fingerprint

    Wind Turbine
    Turbulence models
    Aerodynamics
    Wind turbines
    Rotor
    Torque
    Rotors
    Space-time
    Turbulence Model
    Formulation
    Offshore wind turbines
    Turbulent flow
    Reynolds number
    Variational multiscale Method
    Eulerian-Lagrangian Methods
    Rotating Flow
    NURBS
    Multiscale Model
    Use Case
    Turbulent Flow

    Keywords

    • DSD/SST formulation
    • Rotating turbulent flow
    • Space-time variational multiscale method
    • Torque values
    • Wind-turbine aerodynamics

    ASJC Scopus subject areas

    • Computational Theory and Mathematics
    • Mechanical Engineering
    • Ocean Engineering
    • Applied Mathematics
    • Computational Mathematics

    Cite this

    Stabilized space-time computation of wind-turbine rotor aerodynamics. / Takizawa, Kenji; Henicke, Bradley; Tezduyar, Tayfun E.; Hsu, Ming Chen; Bazilevs, Yuri.

    In: Computational Mechanics, Vol. 48, No. 3, 09.2011, p. 333-344.

    Research output: Contribution to journalArticle

    Takizawa, Kenji ; Henicke, Bradley ; Tezduyar, Tayfun E. ; Hsu, Ming Chen ; Bazilevs, Yuri. / Stabilized space-time computation of wind-turbine rotor aerodynamics. In: Computational Mechanics. 2011 ; Vol. 48, No. 3. pp. 333-344.
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