the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Performance enhancements on wind turbines using flow controllers: A review
Abstract. An effective strategy for enhancing the performance of wind turbines has been identified in the utilization of flow controllers. In this review paper, recent advances in flow control techniques and their impact on the aerodynamic performance of wind turbines at different Tip Speed Ratios (TSRs) are summarized. Emphasis is placed on the examination of the effects of various geometrical parameters of flow controllers on the performance of wind turbines through numerical studies. The aerodynamic principles underlying each flow controller and their functioning on wind turbines are elucidated for each flow controller. The geometrical parameters of each flow controller, as explored in prior studies, are the focal point. The TSR range in which each technique is most effective, along with the advantages and limitations of each, is identified. Furthermore, the current state of knowledge concerning the utilization of active flow controllers and their impact on wind turbine performance is discussed. In conclusion, this comprehensive review paper presents an overview of state-of-the-art research on flow controllers for wind turbines, with a specific focus on the geometrical parameters and TSRs studied, and identifies potential areas for future research and development.
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RC1: 'Comment on wes-2024-63', Anonymous Referee #1, 27 Jul 2024
In this drafted manuscript, the authors have performed a review study regarding the performance enhancements on wind turbines using flow controllers. After the detailed glance, the main issues for suggestion can be seen as the following comments:
- A chart of nomenclature, symbol, subscripts, abbreviations should be prepared in terms of better understanding for readers.
- The resolutions of few figures are not readable and too small. They must be reedited.
- Provide comprehensive "Highlights" for the text, indicating the contributions of the paper, as allowed by the Journal.
- The writing of the drafted paper should be revised from top to bottom with an experienced helper.
In addition to comments mentioned above, it is not obligatory but the authors might be suggested to add the current and actual studies in the introduction part including explanation passive flow control methods over different airfoils as the following related and current studies so that the scope of this review study is wider:
- Traditional and new types of passive flow control techniques to pave the way for high maneuverability and low structural weight for UAVs and MAVs
- Investigation of pre-stall flow control on wind turbine blade airfoil using roughness element.
- Investigation of the effect of hidden vortex generator-flap integrated mechanism revealed in low velocities on wind turbine blade flow
- Passive Flow Control Application Using Single and Double Vortex Generator on S809 Wind Turbine Airfoil
- Effect of partial flexibility over both upper and lower surfaces to flow over wind turbine airfoil
The comments and suggestions mentioned above should be taken into consideration carefully for better review paper.
Citation: https://doi.org/10.5194/wes-2024-63-RC1 - RC2: 'Comment on wes-2024-63', Anonymous Referee #2, 05 Aug 2024
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