Developing a coupled turbine thrust methodology for floating tidal stream concepts: Verification under prescribed motion
Developing a coupled turbine thrust methodology for floating tidal stream concepts: Verification under prescribed motion
复制标题
DOI：
10.1016/j.renene.2019.08.119
复制
发表时间：
2020-03
期刊：
影响因子：
8.7
通讯作者：
S. Brown;E. Ransley;Deborah Greaves
中科院分区：
文献类型：
--
作者：
S. Brown;E. Ransley;Deborah Greaves
浮动系统提供了一个机会，扩大潮汐能资源，通过增加可行的网站和更大的流速附近的自由表面。然而，由于波浪的存在，自由表面的紧密接近提供了关于电力输送和生存能力的不确定性，这可以通过能够同时考虑浮式潮汐系统的所有组件的数值模型来解决。本文介绍了这样一个工具的发展的第一步：使用开源的CFD库OpenFOAM为基础，计算效率高的HATT模型已开发的广义入射流条件下使用致动器理论。在整个浮动潮汐系统的模拟，如流速和网格对齐的模型的关键考虑因素的灵敏度进行了彻底的评估，表明该模型是强大的，确保它是适合于未来扩展到波浪驱动的环境和集成到这样的系统的框架。
Floating systems offer an opportunity to expand tidal energy resource through an increase in viable sites and greater flow speeds near the free surface. However, the close proximity of the free surface provides uncertainty regarding power delivery and survivability due to the presence of waves, which could be addressed through a numerical model that is capable of considering all components of a floating tidal system simultaneously. This paper presents the first step in the development of such a tool: using the open-source CFD libraries of OpenFOAM as a basis, a computationally efficient HATT model has been developed for generalised incident flow conditions using actuator theory. A thorough evaluation of the model's sensitivity to key considerations in the simulation of entire floating tidal systems, such as flow speed and mesh alignment, showed that the model is robust, ensuring that it is suitable for future extension to wave-driven environments and integration into a framework for such systems.