海上风机导管架基础局部冲刷数值模拟  

Numerical simulation of local erosion on offshore wind turbine jacket foundations

作　　者：陈元林[1] 吴志超 骆文波 安博文[1] 崔桂艳 CHEN Yuanlin;WU Zhichao;LUO Wenbo;AN Bowen;CUI Guiyan(College of Information Engineering,Shanghai Maritime University,Shanghai 201306,China;Science and Technology Research Institute of Guangdong Energy Group Co.,Ltd.,Guangzhou 510620,Guangdong,China;Guangdong Energy Group Co.,Ltd.,Guangzhou 510620,Guangdong,China;Shanghai Anxin Information Technology Co.,Ltd.,Shanghai 201306,China)

机构地区：[1]上海海事大学信息工程学院,上海201306 [2]广东能源集团科学技术研究院有限公司,广东广州510620 [3]广东省能源集团有限公司,广东广州510620 [4]上海安馨信息科技有限公司,上海201306

出　　处：《上海海事大学学报》2025年第1期136-143,共8页Journal of Shanghai Maritime University

基　　金：广东省重点领域研发计划(2023B1111050010,2022B0101100001)。

摘　　要：为加深对工程海域海上风机导管架基础冲刷规律的认识,提出一种基于水沙运动理论的导管架基础冲刷数值模拟方法。开展不同桩型导管架基础周围流场特征分析;采用RNG k-ε湍流模型和泥沙颗粒运动模型模拟导管架基础周围流体和海床泥沙的运动,建立三桩和四桩导管架基础冲刷三维数值模型,分析典型工况下桩腿周围流场分布及局部冲刷特性;利用广东海域某工程冲刷实测数据进行验证。结果表明,该数值模型对实际工程条件下的导管架基础周围流场和局部冲刷深度特征模拟结果较准确,可为风电基础防冲刷设计提供一定的支持。In order to deepen the understanding of the erosion law of offshore wind turbine jacket foundations in engineering sea areas,a numerical simulation method for jacket foundation erosion based on the theory of water and the sediment movement is proposed.The characteristic analysis of the flow field around jacket foundations of different pile types is carried out;the RNG k-εturbulence model and sediment particle motion model are used to simulate the movement of fluid and seabed sediment around the jacket foundations,three-dimensional numerical models for the three-pile and four-pile jacket foundation erosion are established,and the distribution of flow field around the pile legs and the local erosion characteristics under typical working conditions are analyzed;the erosion measured data of a project in Guangdong sea area are used for verification.The results indicate that,the numerical model is more accurate in simulating the flow field around the jacket foundations and local erosion depth characteristics under actual engineering conditions,which can provide some support for the anti-erosion design of wind power foundations.

关 键 词：导管架基础 流场特性 局部冲刷 数值模拟 

分 类 号：TU473.1[建筑科学—结构工程] TM614[建筑科学—土工工程]