东大港水道流速垂线分布探讨  

Vertical distribution character of current velocity in Dongdagang channel

作　　者：吴德安[1] 崔效松 童朝锋[1] 张忍顺[3] 

机构地区：[1]河海大学水文水资源与水利工程科学国家重点实验室,江苏南京210098 [2]长江水利委员会长江下游水文水资源勘测局,江苏南京210090 [3]南京师范大学海洋及滩涂研究所,江苏南京210097

出　　处：《海洋科学》2008年第3期49-54,共6页Marine Sciences

基　　金：国家自然科学基金资助项目(50709007)

摘　　要：对辐射沙洲海域东大港水道4号站位连续2个潮次的流速测量资料进行了分析、研究,拟合给出了流速垂线分布关系,并根据实际测量资料率定了该站位各时刻6个水层的浑水水流的尾流函数项表达式,这些表达式表明浑水水流的尾流函数项是相对深度和摩阻速度的函数。On the basis of analyzing the two tidal periods＇ successive survey results on the tidal current at No. 4 station in the tidal channel called Dongdagang, the characters of tidal current and space distribution of current vector are further studied. The vertical distribution of current velocity is studied and the surveyed current velocity data are fitted to the relative depth. The vertical distribution relationship between velocity and relative depth is discovered. Based on the surveyed current velocity data, the remainder current functions of six water layers are calibrated by the fitting method. The remainder current function term is the function of friction velocity and relative depth.

关 键 词：辐射沙洲 潮流 垂线分布 拟合 尾流函数 

分 类 号：P731.23[天文地球—海洋科学]