Analysis of blocking phenomena in bifurcated channels found in mountainous rivers

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by Kazuyoshi Hasegawa, Hokkaido Univ,
Toshinao Mizugaki, Hokkaido Univ,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract: The paper presents an analysis of blocking phenomena in bifurcated channels found in mountain rivers. A change of channels may be caused by deposition of sediments which blocks the entrance of one of the channel branches, forming an abandoned channel. A hypothesis was made stating that a plug would grow under hydraulic jump occurring near the entrance of a bifurcated channel. Also presented is the test of this hypothesis and the explanation of the blocking phenomena mechanism through experiments and analysis.

Subject Headings: Flow measurement | Fluid flow | Channel flow | River flow | Supercritical flow | Bifurcations | Mountains | Sediment |

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