Numerical study on vortex dynamics in oscillatory boundary layer flow over ripples: 21ST CENTURY: THE NEW ERA FOR HYDRAULIC RESEARCH AND ITS APPLICATIONS

C B Jiang; Y C Bai; Z D Zhao; X P Liu

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Numerical study on vortex dynamics in oscillatory boundary layer flow over ripples: 21ST CENTURY: THE NEW ERA FOR HYDRAULIC RESEARCH AND ITS APPLICATIONS

C B Jiang, Y C Bai, Z D Zhao and X P Liu

HYDRAULICS OF RIVERS WATER WORKS AND MACHINERY, VOL II, THEME D, PROCEEDINGS, pp.740-746

01/01/2001

Abstract

Engineering

Engineering, Civil

Physical Sciences

Science & Technology

Technology

Water Resources

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.

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Title: Numerical study on vortex dynamics in oscillatory boundary layer flow over ripples
Creators - without role: C B Jiang
Y C Bai
Z D Zhao
X P Liu
Contributors - without role: G Li
Publication Details: HYDRAULICS OF RIVERS WATER WORKS AND MACHINERY, VOL II, THEME D, PROCEEDINGS, pp.740-746
Publisher: TSINGHUA UNIVERSITY PRESS
Number of pages: 7
Identifiers: 9945019008331
Academic Unit: King Abdullah University of Science & Technology
Language: English
Resource Type: Conference proceeding