A Study on the Superficial Texture of Running Water on the Gentle Slope with Rough Surface

Abstract

A river structure across river bed with gentle slope has many merits. People can approach and fish can swim up easily because of its slow flow, and many kinds of texture can be designed by controling roughness of surface of a structure. But hydrological relationship between roughness and superficial texture of water has never been studied. In this paper, authors tried to classify the types of texture which can be seen around a stone, determine the factors of the texture by model experiment using half balls, and apply to a real structure.