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

页码：685 / 699

页数：15