期刊
JOURNAL OF HYDRAULIC ENGINEERING
卷 139, 期 8, 页码 803-811出版社
ASCE-AMER SOC CIVIL ENGINEERS
DOI: 10.1061/(ASCE)HY.1943-7900.0000738
关键词
Open channel flow; Turbulence; Sediment transport; Vegetation; Open-channel flow; Turbulence; Sediment transport; Vegetated flows
资金
- EPSRC, UK [EP/G056404/1]
- Division Of Earth Sciences
- Directorate For Geosciences [1242458] Funding Source: National Science Foundation
- EPSRC [EP/G056404/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G056404/1] Funding Source: researchfish
This paper reports the double-averaged (in space and in time) hydrodynamic equations for mobile-boundary conditions that are derived based on the refined double-averaging theorems, modified Reynolds decomposition, and improved definitions of the spatial and time bed porosities. The obtained double-averaged conservation equations provide a mathematical framework for studying mobile-boundary flows such as gravel bed rivers during flood events or flows over vegetated beds. These equations will help in designing measurement campaigns for obtaining mobile bed data and their interpretation and parameterization, eventually leading to improved and more robust predictive models. (C) 2013 American Society of Civil Engineers.
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