DOI: 10.1016/j.marpolbul.2014.08.043
Scopus记录号: 2-s2.0-84908610754
论文题名: 3D CFD simulations of trailing suction hopper dredger plume mixing: A parameter study of near-field conditions influencing the suspended sediment source flux
作者: de Wit L. ; Talmon A.M. ; van Rhee C.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2014
卷: 88, 期: 2018-01-02 起始页码: 47
结束页码: 61
语种: 英语
英文关键词: Dredging
; Environmental impact
; Sediment source flux
; Turbidity
; Turbulent plume mixing
Scopus关键词: Computational fluid dynamics
; Dredging
; Environmental impact
; Hoppers
; Mixing
; Sediments
; Suspended sediments
; Turbidity
; Computational fluid dynamics simulations
; Deposition behaviours
; Environmentally sensitive areas
; Mathematical relation
; Sediment sources
; Suspended sediment sources
; Trailing suction hopper dredger
; Turbulent plume
; Dredges
; computational fluid dynamics
; dredger
; dredging
; plume
; sediment pollution
; sediment transport
; suspended sediment
; turbidity
; Article
; calculation
; computational fluid dynamics
; dredging
; flow rate
; mathematical computing
; mathematical model
; plume
; sediment
; ship
; simulation
; trailing suction hopper dredger
; computer simulation
; environment
; marine biology
; sediment
; suction
; theoretical model
; three dimensional imaging
; Computer Simulation
; Environment
; Geologic Sediments
; Imaging, Three-Dimensional
; Marine Biology
; Models, Theoretical
; Suction
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Frequency, duration and intensity of stresses like turbidity and sedimentation caused by dredging must be known to determine the environmental impact of dredging projects. These stresses depend on the amount of sediment spill from a dredger and on how much of this spill still is in suspension near environmentally sensitive areas. Near-field mixing close to a dredger influences the deposition behaviour of the sediment spill. This is investigated systematically with computational fluid dynamics simulations for 136 different conditions of trailing suction hopper dredger overflow sediment plume mixing. Most important influences are found for the ambient depth and the crossflow velocity (vector sum of the dredging speed and the ambient velocity), which can result in a completely different suspended sediment source flux behind the dredger. The simulation results are translated into mathematical relations to predict the suspended sediment source flux without computational effort. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/85222
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Section of Dredging Engineering, Faculty 3mE, Delft University of Technology, Mekelweg 2, CD Delft, Netherlands; Svasek Hydraulics, Schiehaven 13g, Rotterdam, Netherlands
Recommended Citation:
de Wit L.,Talmon A.M.,van Rhee C.. 3D CFD simulations of trailing suction hopper dredger plume mixing: A parameter study of near-field conditions influencing the suspended sediment source flux[J]. Marine Pollution Bulletin,2014-01-01,88(2018-01-02)