scholarly journals Numerical simulation of hydrodynamics and bank erosion in a river bend

2008 ◽  
Vol 44 (9) ◽  
Author(s):  
Massimo Rinaldi ◽  
Beatrice Mengoni ◽  
Laura Luppi ◽  
Stephen E. Darby ◽  
Erik Mosselman
Keyword(s):  
Numerical Simulation ◽  
Bank Erosion ◽  
River Bend

scholarly journals ANALISIS ALIRAN DI BELOKAN SALURAN (STUDI MODEL FISIK DAN MATEMATIK UNTUK MENJELASKAN FENOMENA GERUSAN DI SUNGAI PALU)

2020 ◽  
Author(s):  
M. Galib Ishak
Keyword(s):  
Numerical Model ◽  
Water Level ◽  
Cross Section ◽  
Flow Model ◽  
Bank Erosion ◽  
Laboratory Modeling ◽  
River Bank ◽  
Water Level Rise ◽  
Number Variation ◽  
River Bend

Local scoruring phenomena in river bend, generally affected from secondary and centrifugal flow. The chracteristic of flow surrounding the curve created eddies wich is showed inconsistency of flow model. The effect of those flow are the differentiation of water level at closed out of divert channel. The numerical model and laboratory modeling was conducted in all research aspect. Some model used to calibrate the laboratory work and it compared with numerical model. The result of the research showed the cross section deformation. The transverse duct deformed market as the water level rise in turning canal and it is indicated from Froude number variation. The increased of surface leval around the river bend was correlated to velocity. And The consequences of surface rise and flow accumulation at stream curve is river bank erosion.

Numerical simulation of bank erosion and channel migration in meandering rivers

2002 ◽  
Vol 38 (9) ◽  
pp. 2-1-2-21 ◽  
Author(s):  
Stephen E. Darby ◽  
Andrei M. Alabyan ◽  
Marco J. Van de Wiel
Keyword(s):  
Numerical Simulation ◽  
Bank Erosion ◽  
Channel Migration ◽  
Meandering Rivers

scholarly journals Numerical Simulation of Flow Pattern in Series of Impermeable Groynes in Fixed Bed

2021 ◽  
Vol 6 ◽  
pp. 83-88
Author(s):  
Mukesh Raj Kafle
Keyword(s):  
Numerical Simulation ◽  
Velocity Field ◽  
Flow Pattern ◽  
Fixed Bed ◽  
Bank Erosion ◽  
Recirculating Flow ◽  
Optimal Spacing ◽  
In Series ◽  
Computational Fluid Dynamics Cfd

This paper presents a numerical simulation of recirculating flow patterns in groyne fields. Moreover, it entails the concept determination of proper spacing of vertical unsubmerged and impermeable groynesin seriesto control the bank erosion. Flow pattern between the groynes varies along their space. The flow in groyne field may significantly affect the flow change, bed change, bank erosion and condition of habitat. In this regard, an assessment of flow along the space of groynes will yield important data needed to diversify the object of groyne installation. So, knowledge about determination of the proper spacing of groynes in groyne field is important. Space of vertical groynes was set from 1.5 to 10 times the length of groynes. The velocity field between groynes was simulated by using Computational Fluid Dynamics (CFD) model Nays 2D. Simulated velocity field was compared with existing experimentaldata for the same parameter, which agreed satisfactorily. Based on simulated results,the optimal spacing of vertical groynes to control the bank erosion was recommended.

Water uptake by substituted amylose tablets: experimentation and numerical simulation

2009 ◽  
Vol 00 (00) ◽  
pp. 090904073309027-8
Author(s):  
H.W. Wang ◽  
S. Kyriacos ◽  
L. Cartilier
Keyword(s):  
Numerical Simulation ◽  
Water Uptake
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