开发海上浮式风力机与水产网箱一体化结构气动动力耦合分析的OpenFOAM求解器

IF 4.2 2区工程技术 Q1 ENGINEERING, CIVIL

Coastal Engineering Pub Date : 2025-02-06 DOI:10.1016/j.coastaleng.2025.104720

Yefeng Cai , Haisheng Zhao , Xin Li , Wei Shi , Qing Xiao

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引用次数: 0

摘要

近年来，海上浮式风力发电机与水产养殖网箱的集成结构引起了人们的广泛关注。本研究首次建立了FOWTs与养殖网箱一体化结构的CFD分析方法，并开发了用于一体化结构耦合分析的专用求解器HybridMarineFoam。求解器目前包括气动、水动力、系泊和水产养殖笼计算模块。养殖网箱模块以Darcy-Forchheimer模型为基础，将浮动平台运动的影响纳入到Darcy-Forchheimer方程中，并考虑网箱对浮动平台的水动力冲击，从而实现鱼网箱与浮动平台的耦合计算。在本研究中，移动养殖网箱的受力计算和整体结构的耦合模拟得到了很好的验证。随后，提出了将IEA 15 MW FOWT与养殖笼相结合的一体化结构，并利用HybridMarineFoam求解器对其在不同风速、波高和水流速度下的气动、水动力和流场特性进行了分析。结果表明，笼的存在对浮式风力机的系统动力学、运动响应和流场特性有显著影响。

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Developing an OpenFOAM solver for coupled aero-hydrodynamic analysis of integrated structure with floating offshore wind turbine and aquaculture net cage

The integrated structure of floating offshore wind turbines (FOWTs) and aquaculture net cages has garnered significant attention in recent years. This study establishes, for the first time, a CFD analysis method for the integrated structure of FOWTs and aquaculture cages, and develops a specialized solver, HybridMarineFoam, for coupled analysis of the integrated structure. The solver currently includes aerodynamic, hydrodynamic, mooring, and aquaculture cage computation modules. The aquaculture cage module is based on the Darcy-Forchheimer model, incorporating the influence of the floating platform's motion into the Darcy-Forchheimer equation and accounting for the hydrodynamic impact of the cage on the floating platform, thus achieving coupled calculations between the fish cage and the floating platform. In this study, the force loading calculation for the moving aquaculture cage and the coupling simulation for the integrated structure have been very well validated. Subsequently, an integrated structure, combining an IEA 15 MW FOWT and an aquaculture cage, was proposed, and the HybridMarineFoam solver was used to analyze its aerodynamic, hydrodynamic, and flow field characteristics under different wind speeds, wave heights and water current speeds. The results reveal that the presence of the cage significantly impacts the system dynamics motion response and flow field characteristics of the floating wind turbine.

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来源期刊

Coastal Engineering 工程技术-工程：大洋

CiteScore

9.20

自引率

13.60%

发文量

审稿时长

3.5 months

期刊介绍： Coastal Engineering is an international medium for coastal engineers and scientists. Combining practical applications with modern technological and scientific approaches, such as mathematical and numerical modelling, laboratory and field observations and experiments, it publishes fundamental studies as well as case studies on the following aspects of coastal, harbour and offshore engineering: waves, currents and sediment transport; coastal, estuarine and offshore morphology; technical and functional design of coastal and harbour structures; morphological and environmental impact of coastal, harbour and offshore structures.