摘要
横琴岛中心沟规划水系为珠江三角洲感潮河网水系,水系内存在多个相互连通的环路,水动力条件差异较大。部分区域水体交换能力较差,容易导致局部的污染蓄积。为了掌握水系在外江潮汐影响条件下水动力水质变化规律,采用DELFT SOBEK软件对水闸联合调度条件下的中心沟规划水系进行了水动力水质数值模拟,获得了非稳态浓度推移过程和水体半交换周期等指标,为水系规划提供了技术支撑。
Planning Middle fiver network located in Hengqing island is the tide effected fiver network controlled by gates. Many connected circuits exist in the river network and the hydrodynamics condition differs greatly. The exchange ability of water in the part of area is weak, which leads to pollution accumulation easily. To obtain the change law of hydrodynamics and water quality of the river network effected hy the tide of the outer sea, 1D unsteady Delft Sobek software is used to can7 out the hydrodynamics and water quality computation for the Middle fiver network controlled by the gate and getting the unsteady pollution processing process and index of the semi exchange period, giving the support for water fiver net optimization.
出处
《人民珠江》
2014年第5期20-22,共3页
Pearl River
关键词
感潮河网
数学模型
水体交换
半交换周期
Tidal river network
Mathematics model
Water exchange
Half exchange period
