摘要
基于实测数据和水动力模型,构建闽江下游二维水动力数学模型.通过数值计算和统计分析等方法,探讨枯水期潮动力驱动下大潮与小潮的分流比变化规律,并进一步量化分流坝长度和角度对分流比变化的影响.研究表明,北港分流比在不同阶段和潮汐条件下呈现特定变化规律,且随着分流坝长度的增加而增大;现存分流坝几乎无法发挥调节南、北港水流的作用,角度变化对于其分流比无明显影响,长度为450 m的分流坝则受角度影响较大.该结果为闽江航道后续整治工程的实施提供了科学依据.
A two-dimensional hydrodynamic mathematical model for the lower reaches of Minjiang River was constructed based on measured data and the hydrodynamic model.Numerical simulations and statistical analyses were performed to investigate the variation patterns of the diversion ratio between spring and neap tides driven by tidal dynamics during the dry season.Additionally,the impact of diversion dam length and angle on changes in the diversion ratio was quantitatively assessed.The results show that the diversion ratio at the north port exhibits specific variation patterns under different stages and tidal conditions,increasing with the length of the diversion dam.The existing diversion dam has minimal effect on regulating the flow between the south and north ports,with angle variations having no significant impact on the diversion ratio,whereas a 450m diversion dam is significantly influenced by angle variations.The findings provide scientific support for the implementation of future navigation channel regulation projects in Minjiang River.
作者
陈橙
杨维佳
王智辉
皇甫凯龙
陈浩彦
CHEN Cheng;YANG Weijia;WANG Zhihui;HUANGFU Kailong;CHEN Haoyan(College of Civil Engineering,Fuzhou University,Fuzhou,Fujian 350108,China;Fujian Port&Waterway Investigation and Design Institute Co.,Ltd.,Fuzhou,Fujian 350002,China)
出处
《福州大学学报(自然科学版)》
北大核心
2025年第6期703-709,共7页
Journal of Fuzhou University(Natural Science Edition)
基金
福建省交通运输科技资助项目(JC202316)。
关键词
航道整治
枯水期分流比
二维水动力数学模型
闽江
regulation project
dry season diversion ratio
2D hydrodynamicmathematical model
Minjiang River
