Preprints
https://doi.org/10.5194/wes-2024-60
https://doi.org/10.5194/wes-2024-60
27 May 2024
 | 27 May 2024
Status: this discussion paper is a preprint. It has been under review for the journal Wind Energy Science (WES). The manuscript was not accepted for further review after discussion.

Velocity correction for the Actuator Line Method

Davide Selvatici and Richard J. A. M. Stevens

Abstract. We introduce a velocity correction designed to mitigate the overestimation of aerodynamic loads observed with the traditional Actuator Line Method (ALM) at the blades tip. The correction is based on Blade Element Momentum (BEM) theory to determine the ratio of tip-corrected to non-tip-corrected axial and tangential velocity components. These velocity ratios are used to correct the velocities at the blade locations, ensuring an accurate representation of aerodynamic effects near the blade tips. The correction only requires the Tip Speed Ratio (TSR), which can be estimated from local flow conditions and turbine specifications. This makes the method highly adaptable to various flow scenarios. The effectiveness of the proposed correction has been validated through Large Eddy Simulations (LES) at multiple inflow velocities through comparison against both BEM with tip correction and a vortex-based smearing correction for ALM.

Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
Davide Selvatici and Richard J. A. M. Stevens

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on wes-2024-60', Anonymous Referee #1, 21 Jun 2024
  • RC2: 'Comment on wes-2024-60', Anonymous Referee #2, 10 Jul 2024
  • RC3: 'Comment on wes-2024-60', Anonymous Referee #3, 11 Jul 2024

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on wes-2024-60', Anonymous Referee #1, 21 Jun 2024
  • RC2: 'Comment on wes-2024-60', Anonymous Referee #2, 10 Jul 2024
  • RC3: 'Comment on wes-2024-60', Anonymous Referee #3, 11 Jul 2024
Davide Selvatici and Richard J. A. M. Stevens
Davide Selvatici and Richard J. A. M. Stevens

Viewed

Total article views: 600 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
502 75 23 600 12 20
  • HTML: 502
  • PDF: 75
  • XML: 23
  • Total: 600
  • BibTeX: 12
  • EndNote: 20
Views and downloads (calculated since 27 May 2024)
Cumulative views and downloads (calculated since 27 May 2024)

Viewed (geographical distribution)

Total article views: 578 (including HTML, PDF, and XML) Thereof 578 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 06 Oct 2024
Download
Short summary
The Actuator Line Method is to date one of the most adopted models for wind turbines in numerical simulations, yet it is known to overestimate the loading at the blade tips. We developed an extremely efficient correction methodology that is able to retrieve the loading distribution of Blade Element Method with tip correction independently on the turbine adopted, or on the chosen inflow velocity, making it possible to be used for simulations of wind farms.
Altmetrics