Novel insight into vortex formation and turbine performance through innovative techniques in rotating fluid dynamics

通过旋转流体动力学的创新技术对涡流形成和涡轮机性能的新见解

• 批准号: 327030-2006
• 负责人: Carriveau, Edward
• 金额: $ 1.24万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2008
• 资助国家: 加拿大
• 起止时间: 2008-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=397539
• 关键词: Novel; insight; into; vortex; formation

Novel Insight Into Vortex Formation and Turbine Performance Through Innovative Techniques in Rotating Fluid Dynamics Two individual research programs are detailed in this proposal; both programs are linked by the physics of rotating fluids.  The first program seeks to quantify precisely how a three dimensional vortex forms from start to finish.  In spite of a long history of interest, the specific details of formation have eluded the literature.  This study will break the formation process down into component steps through experiments and computational models.  It is strongly anticipated that results of this program will benefit those studying harmful vortex phenomena including jet intake vortices, dam intake vortices, and even tornado formation. The second research theme focuses on improving the understanding of fluid-structure interaction in renewable energy turbines such as wind turbines and tidal turbines.  Measuring how turbine blades may vibrate and deform under fluid loading (blowing wind or flowing water), is a byzantine task.  It is vital to understand how the fluid and structure interact as this directly influences the turbine performance and durability.  The complexity of the problem has limited the number of similar studies attempted to date.  The fluid dynamic and structural behaviour of both horizontal and vertical axis turbines will be studied in laboratory wind and water tunnels.  Computational simulations of the physical experiments will be developed in parallel with the experimental work.  Though ambitious, this study aims to provide useful data for the improvement of existing wind and open-water turbine technology.  Further, we optimistically expect design innovations to stem from this research.

通过旋转流体动力学中的创新技术对涡流形成和涡轮机性能的新认识本建议书中详述了两个单独的研究计划;这两个程序都是由旋转流体的物理学联系在一起的。第一个程序试图精确地量化三维涡流是如何从开始到结束形成的。尽管有很长的兴趣历史，形成的具体细节还没有文献记载。本研究将通过实验和计算模型将形成过程分解为组成步骤。强烈期望本计划的结果将有益于研究有害涡现象，包括喷气进气道涡，大坝入口漩涡甚至龙卷风的形成。第二个研究主题侧重于提高对可再生能源涡轮机（如风力涡轮机和潮汐涡轮机）中流体-结构相互作用的理解。测量涡轮机叶片在流体载荷下如何振动和变形（风吹或流水），是一项复杂的任务。了解流体和结构如何相互作用是至关重要的，因为这直接影响涡轮机的性能和耐用性。这个问题限制了迄今为止类似研究的数量。水平轴和垂直轴涡轮机的流体动力学和结构行为将在实验室风洞和水洞中进行研究。物理实验的计算模拟将与实验工作并行进行。尽管雄心勃勃，本研究的目的是为改进现有的风力和开放水域涡轮机技术提供有用的数据。2此外，我们乐观地期望，设计创新源于本研究。