SHORT-TERM LOCAL SCOUR

被引：21
|
作者：
MOHAMED, MS [1 ]
MCCORQUODALE, JA [1 ]
机构：
[1] UNIV WINDSOR,DEPT CIVIL & ENVIRONM ENGN,WINDSOR N9B 3P4,ONTARIO,CANADA
来源：
JOURNAL OF HYDRAULIC RESEARCH | 1992年 / 30卷 / 05期
关键词：
D O I：
10.1080/00221689209498888
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Local scour downstream of an apron with a swept-out hydraulic jump is shown to develop very rapidly, that is in less than 1% of the time to reach the ultimate scour depth. The short-term scour although not as deep as the long-term scour, occurs much closer to the apron. The limiting short-term scour depth is found to be related to flow regime or type of hydraulic jump that dominates the flow in the scour hole. The deepest short-term scour was associated with the plunging jump (B-jump) and the adverse jump regimes. A modification of the B-jump equation of Hager and Bretz is proposed to estimate the limiting depth of short-term local scour.
引用
收藏
页码：685 / 699
页数：15
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