Faculty of Engineering and the Environment, Sustainable Energy Research Group, University of Southampton, Highfield, Southampton SO17 1BJ, UK.
Philos Trans A Math Phys Eng Sci. 2013 Jan 14;371(1985):20120246. doi: 10.1098/rsta.2012.0246. Print 2013 Feb 28.
The modelling of tidal turbines and the hydrodynamic effects of tidal power extraction represents a relatively new challenge in the field of computational fluid dynamics. Many different methods of defining flow and boundary conditions have been postulated and examined to determine how accurately they replicate the many parameters associated with tidal power extraction. This paper outlines the results of numerical modelling analysis carried out to investigate different methods of defining the inflow velocity boundary condition. This work is part of a wider research programme investigating flow effects in tidal turbine arrays. Results of this numerical analysis were benchmarked against previous experimental work conducted at the University of Southampton Chilworth hydraulics laboratory. Results show significant differences between certain methods of defining inflow velocities. However, certain methods do show good correlation with experimental results. This correlation would appear to justify the use of these velocity inflow definition methods in future numerical modelling of the far-field flow effects of tidal turbine arrays.
潮汐涡轮机的建模和潮流能提取的水动力效应是计算流体动力学领域中的一个相对较新的挑战。已经提出并研究了许多不同的定义流场和边界条件的方法，以确定它们在多大程度上准确地复制了与潮流能提取相关的许多参数。本文概述了为研究定义入流速度边界条件的不同方法而进行的数值建模分析的结果。这项工作是更广泛的研究计划的一部分，该计划研究了潮汐涡轮机阵列中的流场效应。该数值分析的结果与在南安普顿大学奇尔沃思水力学实验室进行的先前实验工作进行了基准测试。结果表明，某些定义入流速度的方法之间存在显著差异。然而，某些方法确实与实验结果具有良好的相关性。这种相关性似乎证明了在未来的潮汐涡轮机阵列远场流场效应的数值建模中使用这些速度入流定义方法的合理性。
