浅水与桩靴对海上平台水动力影响的数值模拟  

Numerical Simulation of the Influence of Shallow Water and Pile Boots upon Hydrodynamics of Offshore Platforms

作　　者：陈昌哲 吴静萍[1,2] 陶开友 CHEN Chang-zhe;WU Jing-ping;TAO Kai-you(Key Laboratory of High Performance Ship Technology, Ministry of Education, Wuhan University of Technology, Wuhan 430063, China;School of Transportation, Wuhan University of Technology, Wuhan 430063, China;Jiangsu Haiyi Shipbuilding Technology Co., Ltd., Zhenjiang Jiangsu 212000, China)

机构地区：[1]武汉理工大学高性能舰船技术教育部重点实验室,武汉430063 [2]武汉理工大学交通学院,武汉430063 [3]江苏海艺船舶科技有限公司,江苏镇江212000

出　　处：《船海工程》2019年第4期117-121,共5页Ship & Ocean Engineering

摘　　要：针对浅水和桩靴对海上风电作业平台在自航时的水动力影响问题,对有桩靴、无桩靴有桩孔、无桩靴无桩孔3种原型模型,分别在7种不同水深下的流场进行数值模拟,并分析桩靴对该平台水动力的影响,分析结果表明,当相对水深 h/T≤7时,随着h/T的增加阻力系数和抽吸力系数均迅速减小;当h/T≤7时,水深对阻力系数的影响较大,当h/T ≤10时,对抽吸力系数的影响较大;桩靴对平台阻力系数的影响很大,对抽吸力系数影响很小。In order to study the influence of shallow water and pile boots upon the hydrodynamic force of an offshore wind power platform during self-navigation, the flow fields of three kinds of prototype model with pile boots, without pile boots and without holes were numerically simulated under 7 different water depths, and the influence of pile boots on the hydrodynamic force of the platform was also analyzed. The results showed that when the relative water depth h/T ≤7, the drag coefficient and suction coefficient decrease rapidly with the increase of h/T;when h/T ≤7, water depth has a great influence on the drag coefficient;while when h/T ≤10, it has a great influence on the suction coefficient. The pile shoe has great influence on the platform resistance coefficient and little influence on the suction coefficient.

关 键 词：海上风电作业平台 桩靴 浅水阻力 抽吸力 数值模拟 

分 类 号：U661.3[交通运输工程—船舶及航道工程]