越浪式波能发电装置的二维数值模拟研究  

2D Numerical study on overtopping wave energy convertor

作　　者：刘娅君[1] 刘臻[1] 泫汎洙 洪起庸 纪君娜[1,4] 

机构地区：[1]中国海洋大学,山东青岛266100 [2]韩国海洋大学,韩国釜山612022 [3]韩国海洋研究开发院,韩国大田008242 [4]山东省引黄济青工程棘洪滩水库管理处,山东青岛266100

出　　处：《水力发电学报》2012年第2期108-113,127,共7页Journal of Hydroelectric Engineering

基　　金：863计划(2009AA05Z427);教育部新教师基金(20090132120015);山东省科技攻关计划项目(2010GHY10508)

摘　　要：越浪式波能发电装置(Overtopping Wave Energy Convertor,OWEC)通过斜坡式引浪面将不稳定的波浪能转化为蓄水池内较为稳定的势能,进而带动出水管内水轮电机转动,产生电能。本文采用基于计算流体力学软件的二维数值模拟技术对该装置的越浪性能进行研究,通过构建基于水气两相VOF(Volume of Fluid)模型的二维数值波浪水槽,对斜坡式海堤的越浪性能进行模拟,数值计算结果与Saville等的试验值较为吻合,验证了该数值波浪水槽可用于越浪性能的研究。通过考察干舷高度、淹没深度等参数对越浪性能的影响,综合考虑越浪性能及低水头发电机的工作要求,最终给出优化的干舷高度、淹没深度尺寸。Overtopping wave energy convertor（OWEC） is an offshore convertor for collecting wave energy and converting water head into electric power through turbines installed in a duct.A numerical wave tank based on a commercial computational fluid dynamics code was developed for analysis of overtopping characteristics.It uses two-phase VOF technique to generate 2D linear propagating waves and it was validated by simulation of the overtopping behavior of a sloping ramp.To study the overtopping discharge and performance of the devices,the effects of several shape parameters such as hydro head and submergence are examined.Optimized values of these two parameters are proposed.

关 键 词：波浪能 越浪式波能发电装置(OWEC) 数值波浪水槽 越浪性能 干舷高度 淹没深度 

分 类 号：TV136[水利工程—水力学及河流动力学]