Numerical study on vortex dynamics in oscillatory boundary layer flow over ripples

被引：0

作者：

Jiang, CB ^{[1
]}

Bai, YC ^{[1
]}

Zhao, ZD ^{[1
]}

Liu, XP ^{[1
]}

机构：

[1] Tianjin Univ, Inst Sediment River & Coast Engn, Tianjin 300072, Peoples R China

来源：

HYDRAULICS OF RIVERS WATER WORKS AND MACHINERY, VOL II, THEME D, PROCEEDINGS: 21ST CENTURY: THE NEW ERA FOR HYDRAULIC RESEARCH AND ITS APPLICATIONS | 2001年

关键词：

oscillatory boundary layer flow; large eddy simulation; vortex ripple;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Vortex ripple is widely formed in the coastal region, and the dynamic of vortex is quite important because it is responsible for sediment transport. The flow structure around the vortex ripples can be modeled as qusi-2D flow due to the geometry of the flow boundaries. In this paper, 2D Large-Eddy-Simulation method (LES) was used to predict the flow structure and the dynamic of vortex, the numerical simulation results show a completely process of vortex formation, evolvement and disappearance.

引用

页码：740 / 746

页数：7

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