Influence of leading-edge tubercles on the aerodynamic performance of a horizontal-axis wind turbine: A numerical study

Ke, Wenliang; Hashem, Islam; Zhang, Wenwu; Zhu, Baoshan

doi:10.1016/j.energy.2021.122186

Cited by 39 publications

(13 citation statements)

References 26 publications

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“…The benefits obtained for full and finite span wings have been also observed by systematic investigations performed on rotating devices, in particular power generation devices (wind and water turbines) (Bai et al, 2016;Zhang and Bi, 2012;Ibrahim et al, 2015;Ke et al, 2022;Shi et al, 2016aShi et al, ,b, 2019b and aeronautic propellers (Butt and Talha, 2019;Asghar et al, 2020). In general, these studies confirmed that the increase of the amplitude and reduction of the wavelength was the most influencing parameter of the tubercle geometry to achieve efficiency gains.…”

Section: Introductionsupporting

confidence: 57%

Experimental investigation on the effect of Leading Edge Tubercles on the Performance of Marine Propellers in fully wet condition

et al. 2022

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Section: Introductionsupporting

confidence: 57%

Experimental investigation on the effect of Leading Edge Tubercles on the Performance of Marine Propellers in fully wet condition

et al. 2022

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“…The tubercles on the leading edge of the blade help to prevent turbulence and stalling, allowing the blade to generate more power even in low wind conditions. This technology has been shown to improve the efficiency of wind turbines by up to 20 % [20].…”

Section: Biomimetic and Self-lubricating Materials/surfacesmentioning

confidence: 99%

Areas of green tribology: A review

Babu¹,

Akter²

2023

tribomat

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This article presents an introduction to green tribology, a new direction in the field's evolution, an exciting new topic for scientific study, and a novel approach to making tribology a friend to the environment and a proponent of energy conservation. Green engineering and green chemistry are two more "green" fields that are thought to be closely related to green tribology. The article has discussions on a variety of green tribology topics, including the concept, views, role and goal, major principles, key areas, challenges, and future development directions. As an interdisciplinary topic combining energy, materials science, green lubrication, and environmental science, green tribology also attracted human interest due to its biomimetic approach. Hence, the use of biomimicry in environmental design is also discussed in this article.

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“…Abate et al [9] stated that tubercles generate counterrotating vortices that prevent spanwise flow. Ke et al [10] investigated the influence of wind velocity on a sinusoidal leadingedge wind turbine. Ke et al [10] found that tubercles were beneficial at off conditions and high wind velocity (V ≥ 7 m/s), while tubercles degraded generated power at the on conditions and low wind speed (V < 7 m/s).…”

Section: M22mentioning

confidence: 99%

An Investigation of the Dependence of 3D Semi-Span Wing Behaviour on the Leading-edge Tubercles Configuration

Abdelkader

Abdelsamie

Elsayed

2022

Engineering Research Journal

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Inspired by nature, experiments on the aerodynamic behavior of wings and wind turbines with sinusoidal leading-edge continued over the last two decades. The studies showed promising results at post-stall flow regimes as tubercles cause a more gradual lift loss and a higher stall angle of attack. This study aims to investigate numerically the dependence of the wing's aerodynamic coefficients on the tubercle's wavelength and amplitude at the stall angle of attack and 3D flow regime. The results show that increasing the tubercle's average amplitude up to 0.02 of the average chord increases the lift coefficient by 23.61% and decreases the drag coefficient by 4.61%. Similarly, decreasing the wavelength especially up to 1.1096 of the average chord increases the lift coefficient up to 21.55% and decreases the drag coefficient by 9.50%. Flow visualization shows that zones of attaching and separation flow form on the suction surface of the scalloped wings whereas the baseline wing is in a deep stall.

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Influence of leading-edge tubercles on the aerodynamic performance of a horizontal-axis wind turbine: A numerical study

Cited by 39 publications

References 26 publications

Experimental investigation on the effect of Leading Edge Tubercles on the Performance of Marine Propellers in fully wet condition

Experimental investigation on the effect of Leading Edge Tubercles on the Performance of Marine Propellers in fully wet condition

Areas of green tribology: A review

An Investigation of the Dependence of 3D Semi-Span Wing Behaviour on the Leading-edge Tubercles Configuration

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