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An advanced approach to velocity sampling in actuator line models
  • +2
  • Claudia Muscari,
  • Paolo Schito,
  • Axelle Vire,
  • Alberto Zasso,
  • Jan-Willem van Wingerden
Claudia Muscari
Technische Universiteit Delft

Corresponding Author:[email protected]

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Paolo Schito
Politecnico di Milano Dipartimento di Meccanica
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Axelle Vire
Technische Universiteit Delft
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Alberto Zasso
Politecnico di Milano Dipartimento di Meccanica
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Jan-Willem van Wingerden
Technische Universiteit Delft
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Abstract

High-fidelity numerical simulations of wind turbines are often performed through a computational fluid dynamics (CFD) model in which the wind turbine is parametrized using an actuator line model, as fully blade-resolved simulations are computationally expensive at the large Reynolds numbers involved. When applying such an actuator line approach to the modeling of wind turbines, the two main issues to consider are the free-stream velocity sampling and the choice of the regularization kernel used to project the computed body forces onto the domain. In this work, a novel velocity sampling method - the so-called effective velocity model (EVM) - is implemented in the CFD software SOWFA and assessed against pre-existing approaches. Results show superior method robustness with respect to the regularization kernel width choice while preserving acceptable accuracy.
19 Oct 20231st Revision Received
20 Oct 2023Submission Checks Completed
20 Oct 2023Assigned to Editor
20 Oct 2023Review(s) Completed, Editorial Evaluation Pending
10 Nov 2023Reviewer(s) Assigned