2003 年 9 巻 p. 213-218
The article discuses about the boundary mixing coefficient in compound channel.
The boundary mixing coefficient is important parameter calculated by quasi two-dimensionnal shallow water analysis. However, a rational calculated method had not been established.
To evalate relevancy between the boundary mixing coefficient and characteristics of the stream, the boundary mixing coefficient was figured by analytical calculation.
As a result, it became clear that the boundary mixing coefficient is relative to the water depth/hight of the flood plain and roughness coefficient.
Based on these results, it was assured that the equation is related with the water depth/hight of flood plain and roughness coefficient, and it enables to obtain the accurate water level calculated by quasi two-dimensionnal shallow water analysis.
