密度躍層のある場における濁水の挙動に関する研究 (2)-濁度物質の拡散と流出機構-

Abstract

Inflows of turbid water into reservoirs during floods cause sometimes stream pollution oflong duration within the reservoirs and in the river downstream of the reservoirs.Laboratory experiments are carried out to investigate the behaviors of turbid water in anonhomogeneous densimetric flow field. Under experimental and theoretical considerations, two dimensional mathematical model for the routing of the turbidity in thermally stratifiedreservoirs is presented. Velocity distribution, diffusion coefficient and boundary conditionsfor the simulation are also discussed.The turbidity of outflow water and turbidity distribution calculated by the predictive me-thod show fairly good agreemet with the experimental results and the data observed for a ther-mally stratified reservoir.