Experimental study on turbulent characteristics of flow over sand rippled bed

被引：0
|
作者：
Bai Yu-chuan [1 ]
Xu Dong [1 ]
机构：
[1] Tianjin Univ, Sch Civil Engn, Inst Sediment River & Coast Engn, Tianjin 300072, Peoples R China
来源：
PROCEEDINGS OF THE CONFERENCE OF GLOBAL CHINESE SCHOLARS ON HYDRODYNAMICS | 2006年
基金：
中国国家自然科学基金;
关键词：
turbulent characteristics; channel flow; rippled bed; sand ripple;
D O I：
暂无
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In this paper the turbulent characteristics of flow in the open channel with a rippled bed were measured systematically in laboratory flume with an acoustic Doppler velocimeter (ADV) and observed by flow visualization with water dyeing. Based on the high-frequency turbulence signal collected, statistic parameters of turbulent characteristics of the open channel flow were calculated, compared and analyzed, the results of which reveals the significant influence of sand ripple on turbulent structure of flow over it.
引用
收藏
页码：449 / +
页数：3
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