Abstract
This study is concerned with a siphonage with a sliding outer tube, aiming at the collection of sediments, causing a decrease in pondage as well as water pollution in dams. Experiments were performed using siphon pipes of 20 mm and 30 mm I.D. and five kinds of particles with different densities and dimensions. Measured parameters are the volume fraction of the particle in the siphon pipe, the flow rates of water and the particle. The effects of particle diameter and density and the level difference from water surface to siphon exit were investigated. In addition, a performance prediction model is proposed and tested to know its applicability as a design tool of actual large scale systems.
