The Distribution of Water and Suspended Sediment Flow during Spring Flood in the Forked Channel of the Lower Ob (Within Khanty-Mansi Autonomous Area)

2021 ◽  
Vol 48 (1) ◽  
pp. 18-28
Author(s):  
R. S. Chalov ◽  
A. A. Kamyshev ◽  
A. A. Kurakova ◽  
A. S. Zavadskii
Keyword(s):  
Suspended Sediment ◽  
Spring Flood ◽  
Sediment Flow ◽  
Khanty Mansi Autonomous

Study on the Plants Growth Effect of the Sediment-Laden Flow Turbulence Characteristics

2012 ◽  
Vol 518-523 ◽  
pp. 4771-4777
Author(s):  
Jun Ning Li ◽  
Ju Rui Yang ◽  
Jing Luo
Keyword(s):  
Suspended Sediment ◽  
Plant Height ◽  
Suspended Sediment Concentration ◽  
Flow Direction ◽  
Sediment Concentration ◽  
Growth Effect ◽  
Vertical Orientation ◽  
Turbulence Characteristics ◽  
Sediment Flow ◽  
Flow Turbulence

Abstract: The effect on Sediment-laden flow turbulence characteristics of Wetland plants simulated by flexible plastic tree growing and distribution of suspended sediment concentration were studied through the flume experiment under a certain hydraulic condition. The experimental results showed that the vertical velocity distribution of sediment flow with plant was no longer consistent with logarithm distribution with no plants in sediment flow, but for the "S"-type distribution. The turbulent intensity and Reynolds stress in longitudinal,transversal and vertical orientation were anisotropic, and the maximum and the location of the maximum increased with increasing plant height. Plant growth effects of sediment removal was significant. The vertical suspended sediment concentration increased with plant height decrease, the suspended sediment concentration gradually decreased along the flow direction.

scholarly journals Physical and chemical characterization of a spring flood event, Bench Glacier, Alaska, U.S.A.: evidence for water storage

1999 ◽  
Vol 45 (150) ◽  
pp. 177-189 ◽  
Author(s):  
Suzanne Prestrud Anderson ◽  
Katherine M.H. Fernald ◽  
Robert S. Anderson ◽  
Neil F. Humphrey
Keyword(s):  
Suspended Sediment ◽  
Water Discharge ◽  
Drainage System ◽  
Chemical Characterization ◽  
Flood Event ◽  
Spring Flood ◽  
Outlet Stream ◽  
Speed Up ◽  
Physical And Chemical

AbstractPrevious studies of alpine glaciers have demonstrated that as water discharge increases through the summer, the predominant mode of subglacial drainage shifts from a distributed system to a more efficient conduit drainage system. We observed an early-melt-season speed-up and flood event lasting roughly 2 days in a small, uncomplicated Alaskan glacier that appears to have resulted from a sudden shift of the subglacial system in response to a significant accumulation of meltwater within the glacier. Calculated melt-water inputs exceeded discharge before the event; the implied change in storage over this 10 day period was equivalent to roughly 0.13 m averaged over the entire glacier bed. The pattern of discharge and suspended-sediment variations and the appearance of large ice chunks in the stream suggest that the speed-up occurred during a period of establishment of new subglacial conduits. A culminating flood and associated suspended-sediment pulse appear to have marked the final establishment of the new section of subglacial conduit. The flood ended the episode of high sliding velocity, but released water with high solute concentrations that reflect relatively long contact time with sediments. Discharge of stored water, inferred from high solute concentrations and lack of diurnal variation in discharge, continued for at least 3 days. While events such as this must recur through the melt season as the conduit system extends up-glacier and the locus of meltwater inputs shifts, their manifestations in the outlet stream will likely be more subdued later in the season.

scholarly journals Physical and chemical characterization of a spring flood event, Bench Glacier, Alaska, U.S.A.: evidence for water storage

1999 ◽  
Vol 45 (150) ◽  
pp. 177-189 ◽  
Author(s):  
Suzanne Prestrud Anderson ◽  
Katherine M.H. Fernald ◽  
Robert S. Anderson ◽  
Neil F. Humphrey
Keyword(s):  
Suspended Sediment ◽  
Water Discharge ◽  
Drainage System ◽  
Chemical Characterization ◽  
Flood Event ◽  
Spring Flood ◽  
Outlet Stream ◽  
Speed Up ◽  
Physical And Chemical

AbstractPrevious studies of alpine glaciers have demonstrated that as water discharge increases through the summer, the predominant mode of subglacial drainage shifts from a distributed system to a more efficient conduit drainage system. We observed an early-melt-season speed-up and flood event lasting roughly 2 days in a small, uncomplicated Alaskan glacier that appears to have resulted from a sudden shift of the subglacial system in response to a significant accumulation of meltwater within the glacier. Calculated melt-water inputs exceeded discharge before the event; the implied change in storage over this 10 day period was equivalent to roughly 0.13 m averaged over the entire glacier bed. The pattern of discharge and suspended-sediment variations and the appearance of large ice chunks in the stream suggest that the speed-up occurred during a period of establishment of new subglacial conduits. A culminating flood and associated suspended-sediment pulse appear to have marked the final establishment of the new section of subglacial conduit. The flood ended the episode of high sliding velocity, but released water with high solute concentrations that reflect relatively long contact time with sediments. Discharge of stored water, inferred from high solute concentrations and lack of diurnal variation in discharge, continued for at least 3 days. While events such as this must recur through the melt season as the conduit system extends up-glacier and the locus of meltwater inputs shifts, their manifestations in the outlet stream will likely be more subdued later in the season.

scholarly journals On the Issue of Calculation of the Suspended Sediment Load Discharge

2020 ◽  
Author(s):  
Keyword(s):  
Suspended Sediment ◽  
Error Probability ◽  
Analytical Formula ◽  
Calculation Error ◽  
Flow State ◽  
Lower Error ◽  
Sediment Size ◽  
Calculated Probability ◽  
Sediment Flow ◽  
Load Discharge

The article deals with the questions of the contribution of suspended sediment in the processes of formation of the channel, and includes several formulas of suspended sediment discharge calculation and the results of calculations by these formulas. An analytical formula of sediments, in which the absolute exponent of the degree of arguments is equal to one shown the lower error probability. The calculated probability of calculation error is explicitly related to the average relative deviation between the calculated and observed values of sediment flow: the formulas with a lower error probability show better correspondence to the observed values. At the same time, the parameters of the analytical formula of sediment flow integral with respect to the type of bottom sediments represent a more stable dependence of the hydraulic variables of the flow state and sediments in contrast to the formulas of a similar purpose with data on sediment size included in them. This is explained by the fact that even quantum estimates of particle size are often unreliable and have high variability within one phase of water content, whereas the parameters focused on the qualitative state of the system (category of sediment size) characterize the properties of the bottom soil on average (integrally) over the cross-section of the flow.

Modelling suspended sediment flow in arid upland basins

1992 ◽  
Vol 37 (5) ◽  
pp. 481-490 ◽  
Author(s):  
K. D. SHARMA ◽  
R. P. DHIR ◽  
J. S. R. MURTHY
Keyword(s):  
Suspended Sediment ◽  
Sediment Flow

scholarly journals DETERMINING THE CONDITIONS OF SUSPENDED SEDIMENT FLOW IN A DRAINAGE SYSTEM

2019 ◽  
Vol 18 (4) ◽  
pp. 49-58
Author(s):  
Bogusław Michalec ◽  
◽  
Mateusz Strutyński ◽  
Keyword(s):  
Suspended Sediment ◽  
Drainage System ◽  
Sediment Flow

scholarly journals The Simplified of Suspended Sediment Measurement Method in Natural River (Case study of Kuning River in Yogyakarta, Indonesia)

2019 ◽  
Vol 5 (3) ◽  
pp. 243
Author(s):  
Bambang Yulistiyanto ◽  
Bambang Kironoto ◽  
Bangun Giarto ◽  
Mariatul Kiptiah ◽  
Muhammad Lutfi Tantowi
Keyword(s):  
Suspended Sediment ◽  
Cross Sections ◽  
Suspended Sediment Concentration ◽  
Flow Characteristics ◽  
Preventive Measure ◽  
Suspended Sediments ◽  
Sediment Concentration ◽  
Middle Part ◽  
Sediment Discharge ◽  
Sediment Flow

The accumulation of suspended sediment reduces the capacity in the river and deteriorates the water quality. Kuning  River in Yogyakarta is one of the main rivers in Yogyakarta, Indonesia, which is currently facing the issue of suspended sediments. To reduce the effect of suspended sediment and determine a preventive measure, hence, it is necessary to study the characteristics of the suspended sediment flow. Therefore, this study aims to investigate the suspended sediment flow characteristics, i.e. the velocity, and the concentration profiles at specific points in the transverse direction of the channel as well as the correlation of the suspended sediment discharge. Thirty (30) profiles of velocity and suspended sediment concentration were measured at six different points along the Kuning River. Opcon probe was used to measure suspended sediment concentration, while the propeller current meter was used to measure mean point-velocity profiles. Results of this study show the suspended sediment discharge ratio, defined as  are higher in the middle part of the channel than the one near the edge of the channel. The position of z/B where the values of  1 occurs at z/B = 0,19 and z/B = 0,75, which depend on the irregularity of the channel cross-sections. For practical purposes, the depth-averaged velocity and suspended sediment concentration can be determined from 1, 2 and/or 3 points measurement at y = 0,2D, 0,4D and 0,8D.

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