IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Hydro-environment : Hydrodynamic effects on refugia of cobble-bar vegetation established along river bend
Hydrodynamic effects on refugia of cobble-bar vegetation established along river bend
Author : KAYO ASAMI(1), AKIHIKO NAKAYAMA(2) TAKESHI KAWATANI(3) & ICHIRO FUJITA(4)
ABSTRACT
In order to find mechanisms of maintaining cobble bars found along many Japanese rivers, we have conducted a field
survey, two-dimensional flow analysis and LES simulation of flood flows of various discharges at a mid reach of
Ibogawa River in Western Japan. The prominent feature of the river reach studied by the present work is the cobble bar
on the inner bank of an acute bend after a steep sloped riffle but there are a number of other features such as large
boulders and a sudden drop. The roles of these features are investigated by the field survey and the simulation. The
simulation under various conditions indicate that it is the sharp bend and a relatively steep slope that create a bar on the
inner bank where flow of slow speed occurs during medium to large floods.
File Size : 2,111,132 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Hydro-environment
Date Published : 27/08/2015
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