Influence of laterally placed side weirs on bed-load transport in a prismatic channel

2004 ◽  
pp. 593-600 ◽  
Author(s):  
B Rosier ◽  
J Boillat ◽  
A Schleiss
Keyword(s):  
Bed Load ◽  
Load Transport ◽  
Bed Load Transport ◽  
Side Weirs ◽  
Prismatic Channel

scholarly journals Prediction of interaction between a side overflow and bed-load transport in a channel with semi-empirical approaches

2009 ◽  
Vol 36 (11) ◽  
pp. 1755-1763 ◽  
Author(s):  
Burkhard Rosier ◽  
Jean-Louis Boillat ◽  
Anton J. Schleiss
Keyword(s):  
Engineering Practice ◽  
Bed Load ◽  
Flume Experiments ◽  
Load Transport ◽  
Bed Load Transport ◽  
Input Variables ◽  
Side Weirs ◽  
Semi Empirical ◽  
Protection Engineering

Side weirs are free overflow regulation and diversion structures commonly encountered in flood protection engineering. The lateral loss of water reduces the bed-load transport capacity in the main channel, leading to local sediment deposition near the side overflow. As a consequence, the design overflow is increased in an uncontrolled way. Since this flow–sediment interaction in such a channel has not been studied so far, systematic flume experiments have been performed. Based on these experiments, a two-dimensional empirical model to describe the longitudinal evolution of the aggraded channel reach near the weir has been developed. In addition, a simple and straightforward approach for direct estimation of the side overflow in presence of bed-load transport has been established. To be generally applicable in engineering practice, all input variables are expressed in terms of dimensionless parameters. Finally, the application of the models is demonstrated in a case study on the Rhone River in Switzerland.

NUMERICAL MODEL TO SIMULATE THE EROSION ON THE SLOPE DUE TO OVERTOPPING

2010 ◽  
Vol 13 (3) ◽  
pp. 78-87
Author(s):  
Hoai Cong Huynh
Keyword(s):  
Numerical Model ◽  
Flow Model ◽  
Bed Load ◽  
Experiment Data ◽  
Step Method ◽  
Morphological Model ◽  
Load Transport ◽  
Bed Load Transport ◽  
The Finite Difference Method ◽  
Good Agreement

The numerical model is developed consisting of a 1D flow model and the morphological model to simulate the erosion due to the water overtopping. The step method is applied to solve the water surface on the slope and the finite difference method of the modified Lax Scheme is applied for bed change equation. The Meyer-Peter and Muller formulae is used to determine the bed load transport rate. The model is calibrated and verified based on the data in experiment. It is found that the computed results and experiment data are good agreement.

scholarly journals Experimental Study on Bypassing Tunnel of Bed Load Transport in a Reservoir

1996 ◽  
Vol 40 ◽  
pp. 813-818
Author(s):  
Minoru HARADA ◽  
Kazuo ASHIDA ◽  
Takashi DENO ◽  
Yuji OHMOTO
Keyword(s):  
Experimental Study ◽  
Bed Load ◽  
Load Transport ◽  
Bed Load Transport

Measuring Bed Load Transport Rates by Grain-Size Fraction Using the Swiss Plate Geophone Signal at the Erlenbach

2016 ◽  
Vol 142 (5) ◽  
pp. 04016003 ◽  
Author(s):  
Carlos R. Wyss ◽  
Dieter Rickenmann ◽  
Bruno Fritschi ◽  
Jens M. Turowski ◽  
Volker Weitbrecht ◽  
...  
Keyword(s):  
Grain Size ◽  
Size Fraction ◽  
Bed Load ◽  
Load Transport ◽  
Bed Load Transport
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