大凌河口水动力数值模拟分析  

NUMERICAL SIMULATION ANALYSIS OF HYDRODYNAMIC FORCE IN DALINGHE RIVER ESTUARY

作　　者：郭常来[1] 崔健[1] 孙秀波 马玉祥[2] 艾丛芳[2] GUO Chang-lai;CUI Jian;SUN Xiu-bo;MA Yu-xiang;AI Cong-fang(Shenyang Center of China Geological Survey,Shenyang 110034,China;Dalian University of Technology/State Key Laboratory of Coastal and Offshore Engineering,Dalian 116024,Liaoning Province,China)

机构地区：[1]中国地质调查局沈阳地质调查中心,辽宁沈阳110034 [2]大连理工大学/海岸和近海工程国家重点实验室,辽宁大连116024

出　　处：《地质与资源》2022年第5期667-674,共8页Geology and Resources

基　　金：中国地质调查局项目“东北地区自然资源综合调查”(编号DD20211383).

摘　　要：采用大凌河实测长系列河道径流及水下地形等数据,通过建立水动力数值模型,综合考虑潮流和河道径流的影响,对大凌河口的潮流进行模拟,探讨大凌河口及辽东湾北部海域水动力过程的主要特征.结果表明:大凌河口附近海域的海流以潮流为主,具有明显的往复性质.潮流总的运动趋势是,涨潮主流向为北东,落潮主流向为南西.大潮流速大于小潮流速,涨潮流历时与落潮流历时几乎相当.最大涨潮流速约为0.52 m/s,最大落潮流速约为0.4 m/s,潮流涨落平均潮流强度的分布大体和该海域等深线相适应.Based on the long series of measured data about Dalinghe River runoff and underwater terrain,the hydrodynamic numerical model is established to simulate the tidal current of Dalinghe River estuary and the main characteristics of hydrodynamic process in the estuary and northern sea area of Liaodong Bay are discussed considering the influence of tidal current and river runoff.The results show that the ocean current in waters around the estuary is mainly tidal current with obvious reciprocating nature.The general movement trend of tidal current is northeastward at high tide and southwestward at low tide.The speed of spring tide is larger than that of neap tide and the duration of flood current is almost equal to that of ebb current,with the maximum flood speed of 0.52 m/s and maximum ebb speed of 0.4 m/s.The distribution of average tidal current intensity during flood and ebb is roughly consistent with the sea depth contour.

关 键 词：水动力 数值模拟 潮流 大凌河 辽东湾 

分 类 号：P343.5[天文地球—水文科学]