Journal
OCEAN ENGINEERING
Volume 159, Issue -, Pages 358-371Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.oceaneng.2018.04.011
Keywords
Dam-break wave; FLOW-3D; Wave propagation; Surface profile; Bottom resistance; Turbulent kinetic energy
Funding
- National Natural Science Foundation of China [51478390, 51678491, 51708455]
- Project of Key Consulting and Research of Chinese Academy of Engineering [2016-XZ-13]
- Fundamental Research Funds for the Central Universities [2682017QY02]
Ask authors/readers for more resources
The influence of the downstream water depth on darn-break wave is systematically and comparatively studied by simulating the physical experiments in this study. Commercial CFD software package FLOW-3D is chosen as the simulation tool and is validated firstly. Three experimental cases of different initial downstream water depth, including dry-bed case (r = 0), shallow downstream water case (r = 0.1) and deep downstream water case (r = 0.4) carried out by Ozmen-Cagatay and Kocaman (2010) are then simulated. The generation and propagation process of dam-break wave is divided into two and three stages, respectively, for dry-bed and wet-bed cases. And the characteristics of the dam-break wave including free surface profile, wave front velocity, mark point movement and trajectory, interface between upstream and downstream water, bottom resistance and turbulent kinetic energy are compared and analyzed elaborately in each stage for each case. The differences of the characteristics between different downstream water depth cases are achieved and the reasons of the differences are explored, which present a comprehensive understanding of dam-break wave generation and propagation.
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