水翼间距对串列布置全被动式双水翼获能的影响  

Influence of hydrofoil spacing on the energy harvesting performance of fully passive dual hydrofoils in tandem arrangement

作　　者：黄丽 刘臻[1,2] 宋馨钰[1] 倪和强 HUANG Li;LIU Zhen;SONG Xinyu;NI Heqiang(College of Engineering,Ocean University of China,Qingdao 266404,China;Shandong Provincial Key Laboratory of Ocean Engineering,Ocean University of China,Qingdao 266404,China)

机构地区：[1]中国海洋大学工程学院,山东青岛266404 [2]中国海洋大学山东省海洋工程重点实验室,山东青岛266404

出　　处：《海洋工程》2025年第2期81-92,共12页The Ocean Engineering

基　　金：国家重点研发计划项目(2023YFB4204104);国家自然科学基金资助项目(51779239,U1906228);山东省自然科学基金资助项目(ZR2021ZD23)。

摘　　要：单个振荡水翼装置获能有限,对其进行阵列布置是振荡水翼装置规模化发展的主要方向之一。构建串列布置双水翼的二维模型,采用全被动式控制策略,通过数值模拟研究了水翼间距对全被动式双水翼水动力特性及获能性能的影响。通过分析流场结构、运动响应及获能性能变化,研究了串列布置全被动式双水翼干涉机理。研究发现,水翼间距增大,下游水翼获能性能随之提高。此外,根据无量纲化水翼间距L_(x)^(*)∈[3.0,16.0]中各下游水翼的流场变化,将串列双水翼翼涡作用分为3类,其中第Ⅲ类翼涡作用为维持下游水翼良好水动力性能的理想作用类型。在L_(x)^(*)=6.0的最优工况下,双水翼系统平均功率系数与平均效率的获能系数分别为0.7和0.8,其阵列获能密度及有效用海效率分别为118.8 W/m^(2)和0.12。The energy harvesting performance of a single oscillating hydrofoil device is limited,and array arrangements are one of the main directions for the large-scale development of oscillating hydrofoil devices.This study constructs a two-dimensional model of a dual hydrofoil system in tandem arrangement and adopts a fully passive control strategy.Through numerical simulations,the effect of hydrofoil spacing on the hydrodynamic characteristics and energy harvesting performance of the fully passive dual hydrofoil system is analyzed.By examining changes in flow field structure,motion response,and energy harvesting performance,the interference mechanism of the fully passive dual hydrofoil system in tandem arrangement is explored.The results show that increasing the hydrofoil spacing improves the energy harvesting performance of the downstream hydrofoil.Additionally,based on the flow field changes of the downstream hydrofoil in the range of L_(x)^(*)∈[3.0,16.0],the hydrofoil vortex interactions are classified into three types.The third type of hydrofoil vortex interaction is the ideal one for maintaining good hydrodynamic performance of the downstream hydrofoil.Under the optimal condition of L_(x)^(*)=6.0,the average power coefficient and energy harvesting efficiency of the dual hydrofoil system are 0.7 and 0.8,respectively,with an array energy harvesting density of 118.8 W/m^(2)and an effective marine use efficiency of 0.12.

关 键 词：全被动式 串列布置 水翼间距 流场结构 获能性能 

分 类 号：P743[天文地球—海洋科学] TK79[动力工程及工程热物理—流体机械及工程]