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Two-Dimensional Numerical Simulation of Bed-Load Transport of a Finite-Depth Sediment Layer: Applications to Channel Flushing
- Source :
- Journal of Hydraulic Engineering. 143
- Publication Year :
- 2017
- Publisher :
- American Society of Civil Engineers (ASCE), 2017.
-
Abstract
- Numerical modeling of bed-load transport in shallow flows, particularly oriented toward environmental flows, is an active field of research. Nevertheless, other possible applications exist. In particular, bed-load transport phenomena are relevant in urban drainage systems, including sewers. However, few applications of coupled two-dimensional (2D) shallow-water and bed-load transport models can be found, and their transfer from environmental applications-usually river and floodplain-into sewer applications requires some adaptation. Unlike to river systems, where there is a thick layer of sediment that constitutes a movable riverbed, sewer systems have thin layers of sediment that need to be removed, thus exposing a rigid, nonerodible surface. This problem requires careful numerical treatment to avoid generating errors and instability in the simulation. This paper deals with a numerical approach to tackle this issue in an efficient way that allows large-scale studies to be performed and provides empirical evidence that the proposed approach is accurate and applicable for sewage and channel-flushing problems. (C) 2017 American Society of Civil Engineers.
- Subjects :
- 010504 meteorology & atmospheric sciences
Field (physics)
0208 environmental biotechnology
02 engineering and technology
Exner equation
01 natural sciences
Finite-depth sediment layer
medicine
Geotechnical engineering
Channel flushing
0105 earth and related environmental sciences
Water Science and Technology
Civil and Structural Engineering
Bed load
Computer simulation
Mechanical Engineering
Shallow water
Sediment
Mechanics
Thin sediment layer
Graphics-processing unit (GPU) computing
020801 environmental engineering
Waves and shallow water
Partially erodible bed
Flushing
Maximum erodability
medicine.symptom
Geology
Communication channel
Subjects
Details
- ISSN :
- 19437900 and 07339429
- Volume :
- 143
- Database :
- OpenAIRE
- Journal :
- Journal of Hydraulic Engineering
- Accession number :
- edsair.doi.dedup.....683e94fae8913f0b6e4a476c064cc280