中山大学学报自然科学版 ›› 2016, Vol. 55 ›› Issue (6): 1-9.

• 研究论文 •    下一篇

磨刀门水道咸潮上溯数值模拟及其分析

刘祖发,丁波,关帅,陈记臣,张泳华,于海霞   

  1. 中山大学水资源与环境研究中心∥华南地区水循环与水安全广东省普通高校重点实验室,广东 广州 510275
  • 收稿日期:2015-12-11 出版日期:2016-11-25 发布日期:2016-11-25
  • 通讯作者: 刘祖发(1961年生),男;研究方向:水文与水资源研究;E-mail:eeslzf@mail.sysu.edu.cn

Numerical simulation and analysis of saltwater intrusion to Modaomen waterway

LIU Zufa,DING Bo,GUAN Shuai,CHEN Jichen,ZHANG Yonghua,YU Haixia   

  1. Center for Water Resources and Environment∥Key Laboratory of Water Cycle and Water Security in Southern China of Guangdong Higher Education Institutes,Guangzhou 510275, China
  • Received:2015-12-11 Online:2016-11-25 Published:2016-11-25

摘要:

根据磨刀门水道2006年11月和2007年1月的实测水位、盐度等资料,利用MIKE3对该地区咸潮上溯进行数值模拟。经率定验证后,水位与盐度模拟结果与实测值契合度较高,两者的拟合效果检测指标均较好。对数值模拟结果进行分析,结果表明:盐度的层化受地形、分流比及潮汐涨落变化等因素的影响,且由分层带来的盐度差造成水体密度差,进而产生垂向环流致使盐度出现异常变化;潮通量与盐通量的变化具有良好的相关性,反映出潮水运动的物质运输载体功能。

关键词: 数值模拟, 咸潮, 磨刀门, 特征分析

Abstract:

Saline water intrusions at Modaomen waterway were numerically simulated by using MIKE3 based on measured water levels and salinities in November 2006 and January 2007. Calibrated and validated model showed good fitness for both water level and salinity in case of prediction and observation with good detection indexes. The results indicated that salinity stratification, influenced by topography, diversion ratio and other factors such as tidal fluctuation change, resulted in water density difference and then produced extraordinary change in salinity vertical circulation. The change of salt flux is relative to the tidal flux, suggesting that tide is the carrier of brine.

Key words: MIKE3, saline water intrusion, Modaomen waterway, characteristic analysis

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