海峡部における潮流の特性に関する研究

Abstract

Flow pattern in a channel and its characteristics are studied with use of the hydraulic modelof Takahama Straits, of which horizontal and vertical scales are 1/1000 and 1/100 respectively.Circulations are formed in the irregularities in the shoreline of the channel, which trap waterin themselves. Being these circulations broken when the tidal current reverses, trapped water isexchanged for the water in the main stream in this short period. This process leads to the effectivelongitudinal dispersion in the channel. Some of these circulations, formed by the tidal current, arenot formed by the stationary current through the channel.