Experimental and numerical investigation of unsteady flow through ducted wind turbines

管道式风力发电机非定常流的实验和数值研究

• 批准号: 350581-2007
• 负责人: Oshkai, Peter
• 金额: $ 1.45万
• 依托单位: University of Victoria
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2007
• 资助国家: 加拿大
• 起止时间: 2007-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=363870
• 关键词: Experimental; numerical; investigation; unsteady; flow

Personal identification no. (PIN)Family name of applicantOshkaiSUMMARY OF PROPOSAL FOR PUBLIC RELEASE (Use plain language.)This plain language summary will be available to the public if your proposal is funded. Although tt is not mandatory, you may choose toInclude your business telephone number and/or your e-mail address to facilitate contact with the public and the media about your research.A collaborative research project will be undertaken by the University of Victoria and ARIA Wind Power Systems, Inc. to investigate flow-induced vibrations in a novel wind turbine for small-scale power generation.Renewable energy technologies are currently in various stages of maturity. Canadian wind energy industry has grown significantly in recent years, the focus of development being primarily on large utility-scale wind farms. While large wind turbines are generally considered a mature technology, a number of issues remain unresolved in the area of small-scale (up to 300 kW) wind turbines.One of the most important objectives of wind turbine design is effective control of resonant oscillations. Among these oscillations, acoustic noise that arises due to incoming turbulent flow of air and its interaction with the rotating blades, support structures, and control surfaces plays an important role. In particular, noise generation is one of the most important siting constraints for small wind turbines. Small-scale turbines are more often used for residential power and are likely to be deployed in densely-populated regions. Due to proximity of human activity, these applications could result in substantial noise pollution.The investigation of the unsteady structures that occur in the air flow around structural components of the turbine will involve application of the state-of-the-art laser diagnostic techniques such as time-resolved digital particle image velocimetry (TR DPFV). In addition, advanced numerical techniques and modeling approaches will be employed to study flow patterns associated with ducted wind turbines and to investigate mechanisms of flow-induced noise generation.

个人识别号码（PIN）申请人的姓氏Oshkai公开发布提案摘要（使用简单的语言。）如果你的提案得到资助，这份简明扼要的摘要将向公众开放。虽然tt不是强制性的，但您可以选择包括您的公司电话号码和/或您的电子邮件地址，以方便与公众和媒体联系您的研究。维多利亚大学和ARIA风力发电系统公司将开展合作研究项目。研究用于小型发电的新型风力涡轮机中的流致振动。可再生能源技术目前处于不同的成熟阶段。近年来，加拿大风能产业发展迅速，发展重点主要是大型公用事业规模的风电场。虽然大型风力涡轮机通常被认为是一种成熟的技术，但在小型（高达300 kW）风力涡轮机领域中仍有许多问题尚未解决。在这些振荡中，由于进入的空气湍流及其与旋转叶片、支撑结构和控制表面的相互作用而产生的声学噪声起着重要的作用。特别是，噪声产生是小型风力涡轮机最重要的选址限制之一。小型涡轮机更常用于住宅电力，并可能部署在人口稠密地区。由于接近人类活动，这些应用可能会导致大量的噪声污染。涡轮机结构部件周围气流中出现的非定常结构的研究将涉及最先进的激光诊断技术的应用，例如时间分辨数字粒子图像测速仪（TR DPFV）。此外，先进的数值技术和建模方法将被用来研究与涵道风力涡轮机相关的流型，并调查流致噪声产生的机制。