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Preliminary Study of the Behavior of Floating Material on a Side-pool of a River Channel

2000; Volume: 30; Issue: 1 Linguagem: Inglês

10.4145/jahs.30.33

1883-7166

Shin Nakajima, Yoshimasa Kurashige,

Hydraulic flow and structures

Field experiment of the behavior of floating material was conducted at a side pool of a side subchannel of the Inukami River which flows into the east coast of Biwa Lake in Shiga Prefecture, Japan. Four types of floating materials with different bulk density were prepared by changing the amount of water injected into ping-pong ball. The materials were put on a starting point on the side pool, and the motion was traced by eyes. The experiment was conducted under no wind condition with the surface velocity of the main current of the side subchannel ranging from 43.7 to 55.7 cm sec-1.