On the nature of “periodic” river bends

The formation of bends (meanders) can be described by a simple physical model, according to which, water flow in a gentle valley with gentle slopes, once deflected by a random obstacle, starts oscillating from one slope to another, while keeping moving down the valley. The sinuosity of the river (th...

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Bibliographic Details
Published in:Water resources 2016-01, Vol.43 (1), p.73-78
Main Authors: Zavodinsky, V. G., Gorkusha, O. A.
Format: Article
Language:English
Subjects:
Aquatic Pollution
Earth and Environmental Science
Earth Sciences
Fluid mechanics
Freshwater
Hydrogeology
Hydrology/Water Resources
Hydrophysical Processes
Mathematical models
Rivers
Valleys
Waste Water Technology
Water flow
Water Management
Water Pollution Control
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Summary:The formation of bends (meanders) can be described by a simple physical model, according to which, water flow in a gentle valley with gentle slopes, once deflected by a random obstacle, starts oscillating from one slope to another, while keeping moving down the valley. The sinuosity of the river (the ratio of the path along its channel to the direct path along the valley) depends on the ratio of the steepness of the slopes and the valley; the mean sinuosity is close to 1.5 in accordance with the available geographic data.
ISSN:0097-8078
1608-344X
DOI:10.1134/S0097807816010176