Modelling study of hydrodynamics in a macro tidal estuary

被引：5

作者：

Zhang, Jisheng ^{[1
,2
]}

Wang, Rui ^{[3
]}

Guo, Yakun ^{[2
,4
]}

Wu, Xiuguang ^{[5
]}

Zheng, Jinhai ^{[1
,2
]}

Zhang, Zhiyong ^{[5
]}

机构：

[1] Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing, Jiangsu, Peoples R China

[2] Hohai Univ, Coll Harbor Coastal & Offshore Engn, Nanjing, Jiangsu, Peoples R China

[3] Taiyuan Univ Technol, Coll Architecture & Civil Engn, Taiyuan, Shanxi, Peoples R China

[4] Univ Bradford, Fac Engn & Informat, Bradford, W Yorkshire, England

[5] Zhejiang Inst Hydraul & Estuary, Hangzhou, Zhejiang, Peoples R China

来源：

PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-MARITIME ENGINEERING | 2019年 / 172卷 / 02期

基金：

美国国家科学基金会;

关键词：

hydraulics & hydrodynamics; maritime engineering; mathematical modelling; NUMERICAL-SIMULATION; QIANTANG RIVER; SEDIMENT; FLOWS; INTRUSION; TRANSPORT; CHANNEL;

D O I：

10.1680/jmaen.2018.21

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A depth-averaged two-dimensional (2D) numerical model was developed to investigate hydrodynamics in estuaries. The Qiantang estuary is taken as a demonstrative case study. The Qiantang estuary is famous for its macro tide during the spring tide and the Qiantang bore, which poses a challenging task for accurate simulation. In this study, the model was setup to simulate the tidal elevations and the tidal velocity field in the Qiantang estuary. A mesh sensitivity analysis was carried out to optimise the mesh arrangement to achieve computational efficiency while retaining computational accuracy. The simulation results showed that, in general, the numerical simulation agreed well with the field observations, indicating that the developed 2D model can be applied to calculate hydrodynamics in a macro tidal estuary. Some deviation between the simulation and measurements at some locations exists and this discrepancy is analysed and discussed.

引用

页码：34 / 44

页数：11

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