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Application of flow control strategy of blowing, synthetic and plasma jet actuators in vertical axis wind turbines

机译:吹,合成和等离子射流执行器的流量控制策略在垂直轴风力发电机中的应用

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摘要

The vertical axis wind turbines (VAWTs), as common wind turbines for harvesting wind energy, have wide prospects of development. However, the VAWTs are periodically influenced by dynamic stall which can cause the aerodynamic losses and load fluctuation. Therefore, the VAWTs urgently require flow control technique to improve the aerodynamic characteristics. The jet actuators, as active flow control (AFC) techniques, are reasonable implementations for VAWTs. The current paper presents the review of jet flow control techniques which have been used or are worth being used in VAWTs, including the blowing, synthetic and plasma jet actuators. However, the jet flow control strategies to reduce the energy or matter consumption of jet actuators for VAWTs should be developed. Based on the validation of computational model, the VAWTs with upward-parabola blowing jet flow control strategy which can suppress the flow separation in advance was numerically investigated at different tip-speed ratios. The results show that the upward-parabola blowing control strategy can dramatically enhance the aerodynamic performance by using significantly low energy or matter consumption. Obviously, this novel control strategy customized for VAWT can be applied in other jet actuators, improving the aerodynamic performance of VAWT. (C) 2019 Elsevier Masson SAS. All rights reserved.
机译:作为用于收集风能的普通风力涡轮机,垂直轴风力涡轮机(VAWT)具有广阔的发展前景。但是,VAWT会定期受到动态失速的影响,这可能会导致空气动力学损失和负载波动。因此,VAWT迫切需要流量控制技术来改善空气动力学特性。作为主动流控制(AFC)技术的喷射执行器是VAWT的合理实现。本文介绍了已在VAWT中使用或值得使用的射流控制技术,包括吹气,合成和等离子射流执行器。但是,应该开发减少VAWT喷射致动器能量或物质消耗的喷射流控制策略。在计算模型验证的基础上,对不同抛射速比下具有提前抛物线分离特性的向上抛物线喷气控制策略的VAWT进行了数值研究。结果表明,通过使用极低的能量或物质消耗,向上抛物线的吹气控制策略可以显着提高空气动力学性能。显然,这种为VAWT定制的新颖控制策略可以应用于其他喷气执行器,从而改善VAWT的空气动力学性能。 (C)2019 Elsevier Masson SAS。版权所有。

著录项

  • 来源
    《Aerospace science and technology》 |2019年第5期|468-480|共13页
  • 作者单位

    Univ Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R China;

    Univ Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R China;

    Univ Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R China;

    Univ Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R China;

    Univ Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Vertical axis wind turbine; Jet actuator; Flow control; Aerodynamic performance;

    机译:垂直轴风力涡轮机;喷气执行器;流量控制;空气动力学性能;

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