A depth-averaged two-dimensional numerical model of flow and sediment transport in open channels with vegetation

2004 ◽  
pp. 253-265 ◽  
Author(s):  
Weiming Wu ◽  
Sam S. Y. Wang
Keyword(s):  
Sediment Transport ◽  
Numerical Model ◽  
Open Channels ◽  
Two Dimensional ◽  
Flow And Sediment Transport

scholarly journals Application of a 3D Layer Integrated Numerical Model of Flow and Sediment Transport Processes to a Reservoir

Water ◽  
2015 ◽  
Vol 7 (10) ◽  
pp. 5239-5257 ◽  
Author(s):  
Shervin Faghihirad ◽  
Binliang Lin ◽  
Roger Falconer
Keyword(s):  
Sediment Transport ◽  
Numerical Model ◽  
Transport Processes ◽  
Flow And Sediment Transport

scholarly journals NUMERICAL MODEL INVESTIGATION OF SELECTED TIDAL INLET-BAY SYSTEM CHARACTERISTICS

1978 ◽  
Vol 1 (16) ◽  
pp. 76
Author(s):  
William N. Seelig ◽  
Robert M. Sorensen
Keyword(s):  
Sediment Transport ◽  
Numerical Model ◽  
Transport Model ◽  
Tidal Inlet ◽  
Inlet Channel ◽  
Astronomical Tide ◽  
Order Of Magnitude ◽  
Flow And Sediment Transport ◽  
Transport Factors ◽  
System Characteristics

A spatially integrated one-dimensional numerical model of inlet bay hydraulics has been combined with a simple sediment transport model to investigate selected tidal inlet-bay system characteristics. A parametric study has been performed using the models to determine the effect of various factors on the net direction and order of magnitude of inlet channel flow and sediment transport. Factors considered include astronomical tide type, storm surge height and duration, variation in bay surface area, time-dependent channel friction factor, and the addition of a second inlet connecting the bay and sea.

Establishment and Validation of a 1-D Numerical Model of Unsteady Flow and Sediment Transport in the Three Gorges Reservoir (TGR)

2013 ◽  
Vol 444-445 ◽  
pp. 901-905
Author(s):  
Ren Yong Huang ◽  
Jie Zhang
Keyword(s):  
Sediment Transport ◽  
Numerical Model ◽  
Unsteady Flow ◽  
Calculation Method ◽  
Three Gorges Reservoir ◽  
Three Gorges ◽  
The Three Gorges ◽  
Flow And Sediment Transport ◽  
Simulation Results ◽  
Good Agreement

A numerical model for simulating unsteady flow and sediment transport in the mainstream and its tributaries at the TGR was presented in this paper, and a three-gradation method was applied to solve the flow governing equation. A experience formula was gave for the calculation of the size of groups of different coefficient of saturation recovery based on the analysis, so the traditional calculation method was improved in this paper. The validity of the model was checked with the observed data of the TGR from 2003 to 2011. Good agreement between the calculation and observed data was obtained. The simulation results show that this model could be used to simulate the flow and sediment transport at the TGR.

Experimental validation of a sediment transport two-dimensional depth-averaged numerical model using PIV and 3D Scanning technologies

2008 ◽  
Vol 46 (4) ◽  
pp. 489-503 ◽  
Author(s):  
Enrique Peña González ◽  
Jaime Fe Marqués ◽  
Félix Sánchez-Tembleque Díaz-Pache ◽  
Jerónimo Puertas Agudo ◽  
Luis Cea Gómez
Keyword(s):  
Sediment Transport ◽  
Numerical Model ◽  
Experimental Validation ◽  
3D Scanning ◽  
Two Dimensional

scholarly journals STUDI PERENCANAAN ALUR KAPAL DI BELOKAN SUNGAI KAHAYAN KOTA PALANGKA RAYA

2021 ◽  
Vol 4 (1) ◽  
pp. 135
Author(s):  
Amelda Eva Adelina ◽  
Nomeritae Nomeritae ◽  
Hendro Suyanto
Keyword(s):  
Surface Water ◽  
Sediment Transport ◽  
Numerical Model ◽  
Two Dimensional ◽  
Resources Management ◽  
Modelling System

Gerusan dan sedimentasi seringkali terjadi pada penggal tertentu Sungai Kahayan yang berada di sekitar belokan. Hal tersebut disebabkan karena kecepatan aliran pada belokan yang cenderung tidak stabil. Kondisi tersebut tentu akan mempengaruhi alur pelayaran sungai yang digunakan oleh masyarakat untuk berbagai aktivitas. Penggal Sungai Kahayan yang diteliti adalah penggal Muara Rungan hingga Hantasan Kudung. Penelitian ini bertujuan untuk: (1) mengidentifikasi kondisi arus dan sedimentasi pada lokasi penelitian, (2) memprediksi  volume sedimen  yang  harus  dikeruk  sehingga mendapatkan  alur pelayaran  yang  optimal,  dan  (3)  mengestimasi besaran  biaya  yang  diperlukan untuk pekerjaan pengerukan tersebut. Analisis hidrologi dilakukan untuk mendapatkan besaran debit yang diperoleh dari hasil pengukuran kecepatan dan tampang melintang sungai. Analisis hidraulika untuk memodelkan arus dan sedimentasi menggunakan perangkat lunak Surface Water Modelling System (SMS).   Dari   penyesuaian   pemodelan   Resources   Management   Associates-2 (RMA2) dan Two-Dimensional Sediment Transport Numerical Model (SED2D) dalam modul SMS, didapat nilai kecepatan aliran 0,192 m/detik- 0,608 m/detik yang arahnya semakin ke hilir pada sisi luar tiap belokan berpotensi terjadinya gerusan.  Untuk  mendapatkan  alur  pelayaran  yang  optimal  bagi  kapal  barang dengan kapasitas 3.000 DWT beroperasi, perlu dilakukan pengerukan sedimen dengan  volume  sebesar  272.405,44  m3   dengan  estimasi  anggaran  biaya  Rp.6.709.412.678,41.Kata kunci : sungai, alur pelayaran, SMS, RMA2, SED2D

A method for the formulation of Reynolds number functions

2000 ◽  
Vol 27 (4) ◽  
pp. 829-833 ◽  
Author(s):  
Ana Maria AF da Silva ◽  
Tirupati Bolisetti
Keyword(s):  
Reynolds Number ◽  
Sediment Transport ◽  
Flow Characteristics ◽  
Mathematical Expression ◽  
Open Channels ◽  
Strong Variation ◽  
Mathematical Expressions ◽  
Flow And Sediment Transport ◽  
Shields Curve ◽  
General Method

A general method for the formulation of flow characteristics which are functions of the Reynolds number of the system is presented. It is assumed that the flow characteristics exhibit a strong variation with the Reynolds number when the Reynolds number is "small," and that they become independent of it when the Reynolds number is "large." The method is illustrated by finding mathematical expressions for the experimentally determined "roughness" function curve and for the sediment transport initiation curve (Shields' curve), which are relevant for the analysis of flow and sediment transport in pipes and open channels. The two expressions thus obtained can be used in practice for computational purposes.Key words: Reynolds number functions, mathematical expression, roughness function, Shields' curve.

Two dimensional river flow and sediment transport model

2014 ◽  
Vol 15 (3) ◽  
pp. 595-625 ◽  
Author(s):  
Zoltan Horvat ◽  
Mirjana Isic ◽  
Miodrag Spasojevic
Keyword(s):  
Sediment Transport ◽  
River Flow ◽  
Transport Model ◽  
Two Dimensional ◽  
Sediment Transport Model ◽  
Flow And Sediment Transport
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