波能测试区波浪运动数学模型研究  

Modeling Study on the Waves in Dawanshan Wave Energy Test Field

作　　者：李大鸣[1] 张弘强 田顺发 欧阳锡钰 李彦卿[1] 唐星辰[1] 陈硕[1] 甄珠[1] 卜世龙 LI Da-ming;ZHANG Hong-qiang;TIAN Shun-fa;OUYANG Xi-yu;LI Yan-qing;TANG Xing-chen;CHEN Shuo;ZHEN Zhu;BU Shi-long(State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin 300072,China;Ocean Hydrodynamic Center,Tianjin Research Institute for Water Transport Engineering, Ministry of Transportation,Tianjin 300456,China)

机构地区：[1]天津大学水利工程仿真与安全国家重点实验室,天津300072 [2]交通运输部天津水运工程科学研究院海洋水动力中心,天津300456

出　　处：《海洋科学进展》2018年第4期512-524,共13页Advances in Marine Science

基　　金：国家自然科学基金项目--黏性液滴冲击散粒体壁面的运动机理研究(51079095);国家自然科学基金创新研究群体科学基金项目--重大水利工程安全性的基础理论研究(51021004)

摘　　要：为研究位于大万山岛南部的波能测试区新增发电机组对该水域波浪场产生的水动力作用,将自主建立的二维Boussinesq波浪模型应用于该测试区,模拟了不同波浪要素下装置布设前线性波的运动传播,装置布设后无锚固时其在波浪中的自由运动、有锚固时其对波浪场的影响。结果表明,装置布设前的波浪传播,低潮位时波峰线相较高潮位时更为明显,且受陆域影响更大;装置无锚固时的自由运动,低潮位时其运动速度、旋转角速度均小于高潮位时;装置有锚固时,其对波浪场的影响主要集中在背波面,会形成一道顺波向的"扇形"衰减区,其影响程度随波高、波周期的增大而减小。因此,根据研究结果所得到的相对波高衰减范围,可对后期2,3号发电装置的规划与布设提供科学依据,即尽量避开由1号装置引起的波高衰减区,以免造成波能利用率的降低。A wave model on basis of two-dimensional Boussinesq equation was developed to investigate the hydrodynamic influence of the newly established electricity generator on surrounding wave field in Dawanshan wave energy test field.Results showed that the wave crest line was more significant at low tide before the establishment of the generator,and more affected by land.When it is not anchored,the generator's movement speed and angular velocity were higher at the high tide than at low tide.When the generator is anchored,the effect of generator on wave field was mainly in area behind the generator,where a fan-shape decay zone is formed.This influence on wave field will decrease as wave height and wave period increase.These findings are very useful for future planning of electricity generators No.2 and No.3,that is,keep them away from the wave height reduced area caused by the No.1 generator to avoid reduction of wave energy utilization.

关 键 词：波能测试区 波浪场 数学模型 BOUSSINESQ方程 

分 类 号：P731[天文地球—海洋科学]