A Statistical Description of Particle Motion and Rest Regimes in Open‐Channel Flows Under Low Bedload Transport
نویسندگان
چکیده
منابع مشابه
Analysis of bedload transport in laminar flows
Bedload transport generally depends on the bed shear stress and Reynolds number. Many studies conducted for the condition of turbulent flows have revealed the dependence of the transport rate on the bed shear stress, while knowledge of the Reynolds number effect on the transport rate is very limited. As an extreme case to reflect the viscous effect on sediment transport, sediment transport in l...
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This chapter focuses on the statistical approach to turbulence. On the one hand, it seeks to describe the evolution of mean and turbulent fields, and on the other, to highlight the transfer terms between these two fields. This splitting, introduced in 1883byReynolds, is not unique, nor themost satisfactory.Other flowdecompositions are given in Chaps. 8 and 9. Nevertheless, the Reynolds approach...
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15 صفحه اولCharacterization of bedload intermittency near the threshold of motion using a Lagrangian sediment transport model
At the smallest scales of sediment transport in rivers, the coherent structures of the turbulent boundary layer constitute the fundamental mechanisms of bedload transport, locally increasing the instantaneous hydrodynamic forces acting on sediment particles, and mobilizing them downstream. Near the critical threshold for initiating sediment motion, the interactions of the particles with these u...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Earth Surface
سال: 2019
ISSN: 2169-9003,2169-9011
DOI: 10.1029/2019jf005140