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胶州湾水交换的数值研究
赵 亮, 魏 皓, 赵建中
青岛海洋大学物理海洋研究所
摘要:
基于一个成熟的水动力模型ECOM(Estuary Coastal Ocean Model),对胶州湾潮波系统及其驱动下的标识质点运移规律进行数值模拟。将胶州湾划分为6个区域,定量研究了整个海湾水的存留时间和不同区域水的交换能力,并指出流场结构对湾内水交换起了决定性作用。研究结果表明,湾内两余流涡对质点运动起阻碍作用,使得流入余流涡对的质点很难流出;海湾水交换有赖于初始投放时刻;东岸区域质点运移规律表明,东岸排污对前海旅游区和西岸养殖区均无很大影响。
关键词:  ECOM,存留时间,水交换,胶州湾
DOI:10.11693/hyhz200201004004
分类号:
基金项目:国家重点基础研究发展规划项目,G1999043703号。
NUMERICAL STUDY ON WATER EXCHANGE IN JIAOZHOU BAY
ZHAO Liang, WEI Hao, ZHAO Jian-Zhong
Institute of Physical Oceanography,Ocean University of Qingdao
Abstract:
ECOM (Estuary Coastal Ocean Model) is used to simulate the tidal system and the tidally-driven movement of water particles in Jiaozhou Bay, China. Jiaozhou Bay is divided into six parts. The averaged residence time and the water exchange patterns in the different parts are provided quantitatively. It is shown that the structure of the current field plays a decisive role in water exchange. The two residual eddies in the bay can capture the particles and the ultimate ability of water exchange depends on the initial time of particle releasing. The distribution of particles shows that the sewage discharged from the eastern shore of the bay has little effect on the tourism and agriculture of the bay.
Key words:  ECOM, Residence time, Water exchange, Jiaozhou Bay
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