河口海岸近底层潮流速分布模式扩展研究

ide plays a dominant effect on flow near shore especially in continental shelf and along coast. In the process of tidal acceleration, the near bottom velocity profile deviates from traditional logarithmic distribution. According to former scholars and part achievement of the author, the log-linear velocity distribution model of near bottom is obtained. The former study of the author adopt the data in West Solent channel of England which have four layers measurement within 1 meter. Considering the difficulty of obtaining such kinds of data in practice, the log-linear extend model is presented to be applied to traditional six points method measurement data(near bed 0.0D,0.2D,0.4D,0.6D,0.8D,surface layer 1.0D),in which D presents water depth.. Through two practical examples, the Yangtze River and Xiyang sea out of Wanggang coast，it can be concluded that the log-linear extend model reveal the better correlation with measured data in each layer than log-linear and logarithmic model.