An application of cantilevered plates subjected to extremely large amplitude deformations: A self-starting mechanism for vertical axis wind turbines

Tavallaeinejad, Mohammad; Fereidooni, Amin; Paı̈doussis, M.P.; Grewal, Anant; Wickramasinghe, Viresh

doi:10.1016/j.jfluidstructs.2022.103666

Cited by 9 publications

(1 citation statement)

References 34 publications

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“…From Celik [15] and Dominey et al [19], it is clear that there is disagreement on the start-up of two-bladed turbines. Tavallaeinejad et al [20] has numerically investigating the start-up dynamics of a two-bladed H-rotor in order to improve its start-up dynamics by attaching flexible additional/secondary blades to the trailing edges of the primary blades. Significant improvement in the start-up dynamics of the VAWT has been reported however, it should be noted that these additional blades have a significant cost associated with them and thus, it is clear that any external interventions in order to improve the start-up dynamics of VAWTs have cost implications.…”

Section: Lift-based Vawtsmentioning

confidence: 99%

Start-up Dynamics of Vertical Axis Wind Turbines: A Review

Lough,

Asim,

Coull

et al. 2023

J. Phys.: Conf. Ser.

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Vertical Axis Wind Turbines (VAWTs) are becoming increasingly popular for wind power extraction due to their simpler design, lower manufacturing and maintenance costs. The omni-directionality of these power generating machines make them more suitable for operation both under lower wind speeds and highly transient winds. The key wind power extraction component of VAWTs is their rotor, which is conventionally either Drag-based or Lift-based, with the latter being more widely studied in the published literature due to its higher power coefficient compared to its counterpart. The lift-based rotor comprises of aerodynamically profiled blades, while the drag-based rotor comprises of thin cup-shaped blades. The start-up of both these types of VAWT rotors has been an area of active research in the last decade. These studies have been conducted using numerical and experimental methods focusing on key parameters related to the start-up dynamics of VAWTs. Many of these research studies complement each other’s findings, however, there are also a number of aspects where there are disagreements and/or significant knowledge gaps that need to be highlighted in order to accelerate scientific efforts strategically. In the present study, we aim to address these challenges through a thorough and critical review of the published literature on VAWTs’ start-up dynamics, leading towards the identification of key knowledge gaps.

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Section: Lift-based Vawtsmentioning

confidence: 99%