The effective velocity model

Title

The effective velocity model: An improved approach to velocity sampling in actuator line models

 Author

Muscari, C. (TU Delft Team Jan-Willem van Wingerden; Politecnico di Milano) ORCID 0000-0003-4322-9721
Schito, Paolo (Politecnico di Milano)
Viré, A.C. (TU Delft Wind Energy) ORCID 0000-0003-0056-8213
Zasso, Alberto (Politecnico di Milano)
van Wingerden, J.W. (TU Delft Team Jan-Willem van Wingerden) ORCID 0000-0003-3061-7442

 Date

2024

 Abstract

Actuator line modeling of wind turbines requires the definition of a free-stream velocity in a computational mesh and a regularization kernel to project the computed body forces onto the domain. Both choices strongly influence the results. In this work, a novel velocity sampling method—the so-called effective velocity model (EVM)—is implemented in the CFD software SOWFA, validated, and compared to pre-existing approaches. Results show superior method robustness with respect to the regularization kernel width ((Formula presented.)) choice while preserving acceptable accuracy. In particular, the power predicted by the EVM is nearly independent of the (Formula presented.) value.


 Subject

actuator line model
CFD
LES
regularization kernel
velocity sampling
wind turbine modeling

 To reference this document use:

http://resolver.tudelft.nl/uuid:5cc07754-dab1-4dd4-8446-d489ebd08c4c

 DOI

https://doi.org/10.1002/we.2894

 ISSN

1095-4244

 Source

Wind Energy, 27 (5), 447-462

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

© 2024 C. Muscari, Paolo Schito, A.C. Viré, Alberto Zasso, J.W. van Wingerden
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