Towards a unified approach for the hydrodynamic modelling of WECs: Effective linkage of non-linearity and viscous damping in potential flow models

走向 WEC 流体动力学建模的统一方法：势流模型中非线性和粘性阻尼的有效联系

• 批准号: EP/M019977/1
• 负责人: Johannes Spinneken
• 金额: $ 12.8万
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2014
• 资助国家: 英国
• 起止时间: 2014 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FM019977%2F1
• 关键词: Towards; unified; approach; hydrodynamic; modelling

This work is undertaken in the context of the UK-China "Marine Development Feasibility Studies" call. This call was developed through a joint workshop between the UK and China research councils. As part of this workshop, four key areas were identified as critical to the development of wave and tidal energy in China. The research proposed here spans across two of these areas: "Increasing Survivability" and "Holistic Integrated Design Tools". More specifically, the aims and objectives of the present work address important questions related to "Understanding the system dynamics to increase reliability and survivability". In the context of holistic design tools, the research addresses improvements in "CFD techniques (including potential flow models) to assess fluid structure interactions". These two key elements of the present work are tightly linked, with one building upon the other. Whilst enhanced CFD techniques act as important design tools for wave energy conversion (WEC) developers, they are also urgently required to enable and understanding of WEC loading regimes. A firm understanding of loading regimes, in turn, will lead to improved design for survivability. These novel techniques are also crucial in addressing issues related to device reliability and fatigue loading. In addressing these challenges, the understanding of viscous effects and nonlinearities are central.The enhanced physical understanding of both viscous effects and nonlinearity in wave structure interactions is believed to stimulate the development of wave energy extraction in both China and the UK. In the case of China, this is hoped to reduce the high dependence on fossil resources currently imported from abroad. For the UK, the development of wave energy is an important element in meeting the long-term CO2 emission targets.The new unified model to be developed in this project will lead to a more efficient and accurate coupling method for the prediction of hydrodynamic characteristics, dynamic loadings and fatigue effects. Taken as a whole, this provides the base for the improved design of floating WECs, their survivability, and practical maintenance.

这项工作是在中英“海洋开发可行性研究”倡议的背景下进行的。这一呼吁是通过中英两国研究委员会的联合研讨会制定的。作为研讨会的一部分，确定了四个关键领域对中国波浪和潮汐能的发展至关重要。这里提出的研究跨越了两个领域：“提高生存能力”和“整体集成设计工具”。更具体地说，当前工作的目的和目标涉及与“了解系统动力学以增加可靠性和生存能力”相关的重要问题。在整体设计工具的背景下，该研究解决了“评估流体结构相互作用的CFD技术（包括势流模型）”的改进。当前作品的这两个关键要素紧密相连，一个建筑建立在另一个建筑之上。虽然增强型CFD技术是波浪能转换（WEC）开发人员的重要设计工具，但也迫切需要它们来实现和理解波浪能转换（WEC）的加载机制。对载荷制度的坚定理解，反过来，将导致改进设计的生存能力。这些新技术对于解决与设备可靠性和疲劳载荷相关的问题也至关重要。在解决这些挑战时，对粘性效应和非线性的理解是核心。对波浪结构相互作用中的粘性效应和非线性的物理认识的增强，被认为将促进中英两国波浪能提取的发展。就中国而言，这有望降低目前对进口化石资源的高度依赖。对于英国来说，波浪能的开发是实现长期二氧化碳排放目标的重要因素。本项目所建立的统一模型将为水动力特性、动载荷和疲劳效应的预测提供一种更有效、更准确的耦合方法。综上所述，这为浮式WECs的改进设计、生存能力和实际维护提供了依据。

项目成果

Nonlinear loading of a two-dimensional heaving box

• DOI: 10.1016/j.jfluidstructs.2015.11.001
• 发表时间: 2016
• 期刊: Journal of Fluids and Structures
• 影响因子: 3.6
• 作者: M. Rodriguez;J. Spinneken;C. Swan

Application of the immersed-body method to simulate wave-structure interactions

• DOI: 10.1016/j.euromechflu.2015.10.001
• 发表时间: 2016
• 期刊: European Journal of Mechanics B-fluids
• 影响因子: 2.6
• 作者: A. Viré;J. Spinneken;Piggott;C. Pain;S. Kramer

Towards long random sea simulations in numerical wave tanks

数值波浪池中的长期随机海洋模拟

• 作者: Zve ES

A laboratory study on the loading and motion of a heaving box

• DOI: 10.1016/j.jfluidstructs.2016.05.001
• 发表时间: 2016-07
• 期刊: Journal of Fluids and Structures
• 影响因子: 3.6
• 作者: M. Rodriguez;J. Spinneken