摘要
运用计算流体力学（CFD）方法对系泊双浮体波浪能装置的水动力及PTO（动力输出装置）非线性出力特性进行模拟和分析,利用VOF（流体体积分数）方法结合动网格及刚体求解技术模拟波浪生成及浮体运动,分析了不同速度指数的非线性动力输出装置下波浪能装置的水动力及获能特性,并与线性PTO的特性进行对比.在此基础上提出一种组合控制模式,可使波浪能装置在较大的PTO阻尼系数范围内维持较高的俘获宽度比.
The CFD（computational fluid dynamics） method was used to simulate and analyze the hydrodynamic characteristics of WEC（wave energy converter） and the nonlinear PTO（power-takeoff） mechanical characteristics.VOF（volume of fluid） method,dynamic mesh method and rigid body solution were used to simulate wave and buoy motions.The hydrodynamic characteristics of WEC and the nonlinear PTO mechanical characteristics were analyzed under different velocity indexes in the nonlinear PTO.Based on comparison with the mechanical characteristics of linear PTO,a combined control mode was proposed,which could maintain a high capture width ratio of WEC in a wide range of PTO damping coefficient.
作者
国威
周念福
王树齐
赵桥生
Guo Wei;Zhou Nianfu;Wang Shuqi;Zhao Qiaosheng(State Key Laboratory of Hydrodynamics, China Ship Scientific Research Center, Wuxi 214082, Jiangsu China;School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 232003, Jiangsu China)
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2018年第4期57-62,共6页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家海洋可再生资源专项资金资助项目(TJME2011BL03)
中央高校基本科研业务费专项资金资助项目(HEUCFD1414)
关键词
双浮体波浪能装置
计算流体力学
非线性动力输出装置
组合控制模式
俘获宽度比
two-floating wave energy device
computational fluid dynamics
nonlinear power-takeoff device
combined controlmode： capture width ratio
