Hydromechanics for the formation and development of radial sandbanks (Ⅰ)——Plane char

Hydromechanics for the formation and development of radial sandbanks (Ⅰ)——Plane

characteristics of tidal flow

作者：严以新;诸裕良;薛鸿超; 作者机构：;;; 来源：中国科学 年：1999 卷：000 期：001 页码：P.13-21 页数：9

中图分类：P731.2 正文语种：CHI

关键词：radial sandbanks tidal current ridge two-dimensional numerical model to-and-fro motion.

摘要：Based upon the long-term observation of field data, a two-dimensional numerical model is applied to simulating the tidal flow covering from the neap tide to spring tide in the radial sandbank area in the southern Yellow Sea. From the development of tidal current ridges under the hydrodynamic action, multi-purpose analysis and study are carried out, which include the propagation process of tidal wave, the distributions of tidal wave energy rate and tidal range, the tidal ellipses and traces. It is shown that the tidal current is the major dynamic factor for the formation and development of the radial sandbanks, and the

differences of tidal wave energy rate and current strength determine the distinct plane shapes of ridges and troughs in this region.