On the stability of gradually varying flow in wide open channels
作者:
C. Kranenburg,
期刊:
Journal of Hydraulic Research
(Taylor Available online 1990)
卷期:
Volume 28,
issue 5
页码: 621-628
ISSN:0022-1686
年代: 1990
DOI:10.1080/00221689009499050
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Stability criteria and growth rates of long-wave disturbances in gradually varying open-channel flow are derived from an amplitude evolution equation for weakly nonlinear shallow-water waves. The streamwise nonuniformity of the flow is found to influence the stability substantially, in accord with the results of Dracos and Glenne (1967). The behaviour of the instabilities is examined by extending the amplitude evolution equation with higher-order contributions.
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