<abstract xmlns="http://www.w3.org/1999/xhtml"><p>In this paper, two- and three-dimensional numerical modeling is applied in order to simulate water flow behavior over the new Niedów barrage in South Poland. The draining capacity of one of the flood alleviation structures (ogee weir) for exploitation and catastrophic conditions was estimated. In addition, the output of the numerical models is compared with experimental data. The experiments demonstrated that the draining capacity of the barrage alleviation scheme is sufficiently designed for catastrophic scenarios if water is flowing under steady flow conditions. Nevertheless, the new cofferdam, which is part of the temporal reconstruction works, is affecting the draining capacity of the whole low-head barrage project.</p></abstract>

In this paper, two- and three-dimensional numerical modeling is applied in order to simulate water flow behavior over the new Niedów barrage in South Poland. The draining capacity of one of the flood alleviation structures (ogee weir) for exploitation and catastrophic conditions was estimated. In addition, the output of the numerical models is compared with experimental data. The experiments demonstrated that the draining capacity of the barrage alleviation scheme is sufficiently designed for catastrophic scenarios if water is flowing under steady flow conditions. Nevertheless, the new cofferdam, which is part of the temporal reconstruction works, is affecting the draining capacity of the whole low-head barrage project.

Numerical and physical modeling of water flow over the ogee weir of the new Niedów barrage

Faculty of Civil Engineering, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, Wroclaw 50-370, Poland.

Journal of Hydrology and Hydromechanics

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

In this paper, two- and three-dimensional numerical modeling is applied in order to simulate water flow behavior over the new Niedów barrage in South Poland....

Numerical and physical modeling of water flow over the ogee weir of the new Niedów barrage

Published Online: Jan 26, 2016

Page range: 67 - 74

Received: Jun 15, 2015

Accepted: Dec 11, 2015

DOI: https://doi.org/10.1515/johh-2016-0013

Keywords
Hydraulic similarity, Ogee weir, Discharge coefficient, Physical modeling, 2D and 3D numerical modeling, Cofferdam

© 2016 Oscar Herrera-Granados et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Numerical and physical modeling of water flow over the ogee weir of the new Niedów barrage

Published Online: Jan 26, 2016

Page range: 67 - 74

Received: Jun 15, 2015

Accepted: Dec 11, 2015

DOI: https://doi.org/10.1515/johh-2016-0013

KeywordsHydraulic similarity, Ogee weir, Discharge coefficient, Physical modeling, 2D and 3D numerical modeling, Cofferdam

© 2016 Oscar Herrera-Granados et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Hydraulic similarity, Ogee weir, Discharge coefficient, Physical modeling, 2D and 3D numerical modeling, Cofferdam