A critical study on passive flow control techniques for straight-bladed vertical axis wind turbine

Haitian Zhu, Wenxing Hao, Chun Li, Qinwei Ding and Baihui Wu

Energy, 2018, vol. 165, issue PA, 12-25

Abstract: The wind energy has positioned itself as a most promising sustainable energy. The straight-bladed vertical axis wind turbines (SB-VAWTs), as a common turbine for harvesting wind energy, have broad prospects of development. However, the SB-VAWTs are usually influenced by dynamic stall which can cause the aerodynamic losses and fluctuating load. Therefore, the passive flow control (PFC) technique is appreciated for SB-VAWTs due to its low cost and no additional energy consumption. Current paper presents the review of PFC techniques which have been used or are worth being utilized in SB-VAWTs. Furthermore, based on the validation of computational model, a numerical uniform-parameter-criterion study using TSST turbulence model has been conducted to present the research prospects of some novel PFC techniques for SB-VAWTs, including Gurney flap (GF), dimple-GF, leading-edge airfoil-slat (LEAS), flow-deflecting airfoil (FDA), non-circular gap (NCG).

Keywords: Vertical axis wind turbine; Passive flow control; Numerical simulation; Aerodynamic performance (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (17)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:165:y:2018:i:pa:p:12-25

DOI: 10.1016/j.energy.2018.09.072

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