Results 21 to 30 of about 3,652,993 (292)
Movement of sediment over periodic bed [PDF]
Компьютерные исследования и моделирование, 2018 The movement of bed load along the closed conduit can lead to a loss of stability of the bed surface, when bed waves arise at the bed of the channel. Investigation of the development of bed waves is associated with the possibility of determining of the ...
Yuliya Georgievna Krat +1 more
doaj +1 more source
Impact of the regularity of the sediment bed on bed‐load transport [PDF]
PAMM, 2016 AbstractThe present study analyzes the impact of regularly arranged sediment bed on the particle clustering by introducing an artificial non‐uniformity in the particle packing. Two simulations only differing in their sediment bed configuration are reported with the non‐uniform roughness created through a random vertical displacement of the fixed ...
Ramandeep Jain +2 more
openaire +1 more source
Estimating sand bed load in rivers by tracking dunes: a comparison of methods based on bed elevation time series [PDF]
Earth Surface Dynamics, 2020 Quantifying bed-load transport is paramount to the effective management of rivers with sand or gravel-dominated bed material. However, a practical and scalable field methodology for reliably estimating bed load remains elusive.
K. C. P. Leary +2 more
doaj +1 more source
Lateral sediment sources and knickzones as controls on spatio-temporal variations of sediment transport in an Alpine river [PDF]
, 2013 Modern mixed alluvial-bedrock channels in mountainous areas provide natural laboratories for understanding the time scales at which coarse-grained material has been entrained and transported from their sources to the adjacent sedimentary sink, where ...
Norton, Kevin P. +8 more
core +2 more sources
A bed-load formula based on kinetic theory
Shui kexue jinzhan, 2013 Bed-load plays an important role in sediment transport in fluvial rivers. This paper presents a bed-load formula on the basis of kinetic theory. The pick-up rate of bed-load sediment in the formula is obtained by integrating the velocity distribution ...
ZHANG Lei +3 more
doaj +1 more source
Sediment Transport Analysis of Sesayap River, Malinau District, North Kalimantan
Journal of the Civil Engineering Forum, 2017 River could have a very important role in improving the economy of a country when it is correctly and properly utilized. Nevertheless, rivers in Indonesia also have various problems, i.e.
Hardhi Rafsanjani
doaj +1 more source
Effect of bed load transport on the energy dissipation of step-pool system
Shui kexue jinzhan, 2017 Step-pool system is a typical bed micro-morphology in high gradient mountain rivers, which creates extremely high turbulence intensity and thus dissipates a majority the flow energy. The increase of the bed load transport intensity changed the flow field
LI Wenzhe, LI Zhiwei, WANG Zhaoyin
doaj +1 more source
Modeling of sand-gravel bed evolution in one-dimension [PDF]
Компьютерные исследования и моделирование, 2015 In the paper the model for a one-dimensional non-equilibrium riverbed process is proposed. The model takes into account the suspended and bed-load sediment transport. The bed-load transport is determined by using the original formula.
Igor’ Ivanovich Potapov +1 more
doaj +1 more source
Empirical Bed Load Transport Equations [PDF]
, 2014 Bed load transport is of fundamental importance in river engineering. Although there are many bed load transport equations, there is still no consensus on which equation is the best and how to select a particular equation for a particular river.
Singh, Vijay P. +4 more
core +1 more source
The Effect of Hydraulic Partitioning on Prediction the Rate of Bed Load Transport in Gravel-bed Rivers using Support Vector Machine [PDF]
جغرافیا و پایداری محیط, 2019 Evaluation and prediction of sediment transport and associated processes have been one of the main issues of hydraulic and river engineers. There are some variables which affect the amount of bed load of a stream or river which may carry such as ...
Kiyoumars Roushangar +2 more
doaj