Numerical analysis of flow structures and bed entrainment in turbulent open-channel flow [PDF]
, 2009 PhDThe results from a Direct Numerical Simulation (DNS) and a Large Eddy Simulation (LES) are employed to study the large-scale coherent structures and bed entrainment in the turbulent open-channel flow.
Ma, Jianmin
core +4 more sources
Bed-Load Transport Equation on Arbitrarily Sloping Beds [PDF]
Journal of Hydraulic Engineering, 2008 This work presents a simple tool to evaluate bed-load transport intensity and direction on arbitrarily sloping beds with local longitudinal and transversal inclinations up to 25° and in the case of uniform sediments and low values of the applied Shields stress.
FRANCALANCI, SIMONA, SOLARI, LUCA
openaire +1 more source
Transport and deposition behaviour of model slurries in closed pipe flow [PDF]
, 2013 Suspensions of solid particles are ubiquitous in nature and industry. From subaqueous and aeolian dunes and ripples to plug flow in the minerals engineering industry, the complexity of the fluid dynamics and interparticle interactions in multiphase flow
Rice, Hugh
core +6 more sources
Bed-load transport modelling by coupling an empirical routing scheme and a hydrological-1-D-hydrodynamic model – case study application for a large alpine valley [PDF]
Advances in Geosciences, 2012 Sediment transport in mountain rivers and torrents is a substantial process within the assessment of flood related hazard potential and vulnerability in alpine catchments.
B. Gems +5 more
doaj +1 more source
Bedload transport, vertical exchange and sediment storage in two Scottish Highland gravel bed streams [PDF]
, 2012 High recovery magnetic tracing techniques have been utilised to record the 3- dimensional downstream transport of individual clasts within two Scottish Highland gravel-bed streams over a period of 16 months.
Drew, Ian B.
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Experimental study on bed load transport in the armoring process
Shui kexue jinzhan, 2018 To study the characteristics of bed load transport during armor breakup and reformation, three groups of long-duration laboratory experiments were conducted without sediment supply. Each experiment group employed a stepwise increasing discharge.
XU Yuan, ZHU Dejun, MENG Zhen, LI Danxun
doaj +1 more source
The role of velocity, pressure, and bed stress fluctuations in bed load transport over bed forms: numerical simulation downstream of a backward-facing step [PDF]
Earth Surface Dynamics, 2015 Bed load transport over ripples and dunes in rivers exhibits strong spatial and temporal variability due to the complex turbulence field caused by flow separation at bedform crests.
M. W. Schmeeckle
doaj +1 more source
Lagrangian and Eulerian Description of Bed Load Transport [PDF]
Journal of Geophysical Research: Earth Surface, 2018 AbstractSediment particles transported as bed load undergo alternating periods of motion and rest, particularly at weak flow intensity. Bed load transport can be investigated by either following the motion of individual particles (Lagrangian approach) or observing the phenomenon at prescribed locations (Eulerian approach). In this paper, the Lagrangian
Francesco Ballio +3 more
openaire +3 more sources
Bimodal Bed Load Transport Characteristics under the Influence of Mixture Ratio
, 2023 The transport of a non-uniform bed load in a river is a complicated process and has enormous implications on the sediment flux and anomalous riverbed evolution.
Dongpo Sun +3 more
core +1 more source
Movement characteristics and transport laws of the bimodal bed load
Shui kexue jinzhan, 2015 The non-uniform bed load transport is a complicated coherent physical process of the fluid and solid in river. The research into the motion characteristics,transport laws as well as the action mechanism of influencing factors can help to not only ...
SUN Dongpo +5 more
doaj +1 more source