Numerical study of complex fluid-structure interaction

EPSRC主题：海岸和航道工程；海洋波浪和潮汐；水工程；连续介质力学；流体动力学和空气动力学；数值分析；结构工程；风力发电；复杂流体和流变学。预计海洋可再生能源将在发电中发挥重要作用，并将有助于实现英国政府到2050年削减80%碳排放的政策。潜在的机会导致在开发和部署海洋可再生能源设备方面做出了相当大的努力，例如海上风力涡轮机以及波浪和潮汐水流技术。因此，需要能够模拟整个结构在波浪和水流载荷下的行为的模拟工具，以评估海洋能量转换装置和近海结构物的安全性、生存性和生存能力，以及它们对生态系统和沉积物系统的环境影响。该项目的主要目的是量化海洋浮式结构物和近海桩基在极端事件下在各种波浪载荷和强潮作用下的结构响应。数值模拟将与实验测量结果进行比较，将详细揭示浮式海洋能源装置的流固相互作用以及波浪和水流作用下桩-结构物所受的冲击力。此外，开发的全耦合流固耦合仿真工具还可用于其他工程应用，如生物医学工程，基于医学成像研究可移动和可变形几何中的血液流动。

EPSRC Themes: Coastal and waterway engineering ; Marine wave and tidal ; Water engineering ; Continuum mechanics ; Fluid dynamics and aerodynamics ; Numerical analysis ; Structural Engineering; Wind Power; Complex Fluids & Rheology.It is envisioned that marine renewable energy could play an important role in electricity generation and will help to meet the UK government's policy for an 80% cut in carbon emissions by 2050. The potential opportunities have led to considerable effort in the development and deployment of marine renewable energy devices, such as offshore wind turbines as well as wave and tidal stream technologies. Therefore, simulation tools that allow the simulation of the entire structure's behaviour under wave and current loads are needed to assess the safety, survivability and viability for marine energy converter devices and offshore structures, and their environmental impacts on ecosystems and sediment systems.The main aim of the project is to quantify the structural response of a offshore floating structure and offshore pile-supported foundation subjected to various wave loads and a strong tidal current under extreme events. Numerical simulations will be carried out and compared with experimental measurements, which will reveal with great details the fluid-structure interaction of the floating offshore energy device and impact force exerting on pile-structures subjected to waves and currents. In addition, the developed fully coupled fluid-structure interaction simulation tool can also be used in many other engineering applications, such as in biomedical engineering to study blood flow in movable and deformable on geometries based on medical imaging.