Unsteady Fluid Dynamics of Tidal Stream Turbines

潮汐流涡轮机的非定常流体动力学

• 批准号: 2440746
• 金额: --
• 依托单位: University of Oxford
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2440746
• 关键词: Unsteady; Fluid; Dynamics; Tidal; Stream

Tidal stream energy offers a largely unexploited renewable energy source with the benefit of predictability of energy supply 24 hours a day. If the UK's vast tidal range resources can be harnessed, tidal power has the potential to play a significant role in the decarbonisation of the country's energy mix and help it meet ambitious 2050 greenhouse gas emission reduction targets. As a world leader in tidal technology, there are significant economic opportunities for the UK from investment in domestic tidal infrastructure and the potential to export the technology and expertise to other nations.Yet despite its predictability, tidal stream energy bears a higher economic and environmental cost relative to some of its renewable counterparts as the technology must operate in very harsh environments with waves and turbulence producing large unsteady loads on the turbines, resulting in premature device failure and over-conservatism during the design phase.Working with industrial and academic partners alike, the project will centre on Computational Fluid Dynamics (CFD) modelling as well as laboratory scale turbine experiments to understand how unsteady flows, waves and turbulence develop unsteady rotor loading, and how this loading can be incorporated in engineering design tools. In developing a more accurate computational model of rotor dynamics, turbine designs can be optimised, yielding a lower incidence of in-field failures and a potential reduction in the levelised cost of electricity (LCOE) for consumers.The project falls primarily within the EPSRC Energy research area, however, owing to its multi-disciplinary nature involving fluid mechanics and renewable energy, there is also significant overlap with the Engineering theme. At its heart, the aims of the project are aligned with several key EPSRC strategic objectives, namely, achieving UK energy security and efficiency whilst reducing reliance on imported fossil fuels; ensuring a reliable energy infrastructure which underpins the UK economy; and introducing the next generation of innovative and disruptive technologies, which provide affordable energy and limit the impact on scarce natural resources and the environment.The project takes place in the context of the EPSRC-funded Centre for Doctoral Training in Wind and Marine Energy Systems and Structures (WAMESS CDT), which is a collaboration between the Universities of Strathclyde, Oxford and Edinburgh.

潮汐能提供了一种基本上未开发的可再生能源，其好处是每天24小时的能源供应可预测。如果能够利用英国庞大的潮汐能资源，潮汐能有可能在该国能源结构的脱碳中发挥重要作用，并帮助其实现雄心勃勃的2050年温室气体减排目标。作为潮汐技术的世界领先者，英国有重要的经济机会，可以投资国内潮汐基础设施，并有可能向其他国家出口技术和专业知识。然而，尽管其可预测性，潮汐流能相对于其一些可再生对应物具有更高的经济和环境成本，因为该技术必须在非常恶劣的环境中操作，波浪和湍流产生大的该项目将与工业界和学术界的合作伙伴一起，重点研究计算流体动力学（CFD）建模以及实验室规模的涡轮机实验，以了解非定常流、波浪和湍流如何产生非定常转子载荷，以及如何将这种载荷纳入工程设计工具。在开发更精确的转子动力学计算模型时，可以优化涡轮机设计，从而降低现场故障的发生率，并可能降低消费者的平准化电力成本（LCOE）。该项目福尔斯主要属于EPSRC能源研究领域，但是，由于其涉及流体力学和可再生能源的多学科性质，与工程主题也有很大的重叠。该项目的核心目标与EPSRC的几个关键战略目标保持一致，即实现英国能源安全和效率，同时减少对进口化石燃料的依赖;确保支撑英国经济的可靠能源基础设施;并引入下一代创新和颠覆性技术，提供负担得起的能源，并限制对稀缺的自然资源和环境的影响。该项目在EPSRC的背景下进行-资助的中心博士培训在风能和海洋能源系统和结构（WAMESS CDT），这是斯特拉斯克莱德，牛津大学和爱丁堡大学之间的合作。