摘要
本文利用OpenFOAM程序基于物理水槽结构设计建立了波浪-水流水槽模型。由于造流出口位于造波推板正前方的水槽底部,在造流出口的下游存在一个波浪-水流相互作用的整流区间,直到波浪-水流场趋于稳定。本文的主要目的是研究各主要影响参数对于整流区间长度的影响,通过结构参数的优化获得最小整流区间长度,以使有效试验段达到最大化。计算分析了波浪-水流场在水槽中各个位置处的时间平均水平速度的垂向分布,并将平均速度与试验段稳定值的偏差为10%的位置点作为整流区间与试验段的分界点。基于数值模拟结果,确定了最优的水流出口角度、水流出口宽度及其与造波推板的距离,同时研究了工作水深、波浪周期和波高以及水流速度对于整流区间长度的影响。
In this study,a numerical wave-current flume is established based on OpenFOAM software according to the real configuration of a physical flume.The current inlet is set in front of the wave pad⁃dle,which results in the formation of an interaction zone downstream of the current inlet.The aim of this study is to investigate the effects of the main influential parameters on the length of the interaction zone.Thus,the optimal configuration of wave-current flumes can be determined to obtain the mini⁃mum length of the interaction zone,thereby maximizing the effective test section.The vertical profiles of the time-mean averaged horizontal velocity at different locations are calculated.The length of the interaction zone is determined according to deviations of the time-mean velocity from the stable value of less than 10%.Based on the numerical results,the optimal values of the incident angle,location and width of the current inlet are determined.The effects of water depth,wave period,wave height,and current inlet velocity on the length of the interaction zone are also investigated.
作者
姚海元
臧志鹏
房卓
田英辉
程宁
YAO Hai-yuan;ZANG Zhi-peng;FANG Zhuo;TIAN Ying-hui;CHENG Ning(State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin 300072,China;Transport Planning and Research Institute,Ministry of Transport,Beijing 100028,China;Key Laboratory of Earthquake Engineering Simulation and Seismic Resilience of China Earthquake Administration,Tianjin University,Tianjin 300350,China;Melbourne School of Engineering,The University of Melbourne,Victoria 3010,Australia;China Harbour Engineering Company Limited,Beijing 100027,China)
出处
《船舶力学》
EI
CSCD
北大核心
2023年第6期835-847,共13页
Journal of Ship Mechanics
基金
国家重点研发计划项目(2021YFB2600700)
国家自然科学基金面上项目(51979192,51579232)
中国交通建设集团科技项目(2018-ZJKJ-01)。
关键词
数值波流水槽
整流区间
结构参数
优化设计
numerical wave-current flume
interaction zone
configuration parameter
optimal design
