Free bars in rivers
作者:
M. Tubino,
R. Repetto,
G. Zolezzi,
期刊:
Journal of Hydraulic Research
(Taylor Available online 1999)
卷期:
Volume 37,
issue 6
页码: 759-775
ISSN:0022-1686
年代: 1999
DOI:10.1080/00221689909498510
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
In the paper we review some recent work on the mechanics of formation and development of river bars. The emphasis is placed on the instability process which leads to the spontaneous development of bars in almost straight reaches of alluvial rivers. A three dimensional formulation of the problem is presented along with a discussion on the relevant closure relationships. Results of linear and non linear theories for free bars under bedload dominated conditions are summarised. Furthermore, account is given on the effect on bar instability induced by suspended load, grain sorting and width variations. Some as yet unpublished results are also presented.
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