<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The paper shows the results of a comparison of simplified models describing a two-dimensional water flow in the example of a water flow through a straight channel sector with a cavern. The following models were tested: the two-dimensional potential flow model, the Stokes model and the Navier-Stokes model. In order to solve the first two, the boundary element method was employed, whereas to solve the Navier-Stokes equations, the open-source code library OpenFOAM was applied. The results of numerical solutions were compared with the results of measurements carried out on a test stand in a hydraulic laboratory. The measurements were taken with an ADV probe (Acoustic Doppler Velocimeter). Finally, differences between the results obtained from the mathematical models and the results of laboratory measurements were analysed.</p></abstract>

The paper shows the results of a comparison of simplified models describing a two-dimensional water flow in the example of a water flow through a straight channel sector with a cavern. The following models were tested: the two-dimensional potential flow model, the Stokes model and the Navier-Stokes model. In order to solve the first two, the boundary element method was employed, whereas to solve the Navier-Stokes equations, the open-source code library OpenFOAM was applied. The results of numerical solutions were compared with the results of measurements carried out on a test stand in a hydraulic laboratory. The measurements were taken with an ADV probe (Acoustic Doppler Velocimeter). Finally, differences between the results obtained from the mathematical models and the results of laboratory measurements were analysed.

A Comparison of Simplified Two-dimensional Flow Models Exemplified by Water Flow in a Cavern

Faculty of Civil and Environmental Engineering

Archives of Hydro-Engineering and Environmental Mechanics

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

The paper shows the results of a comparison of simplified models describing a two-dimensional water flow in the example of a water flow through a straight...

A Comparison of Simplified Two-dimensional Flow Models Exemplified by Water Flow in a Cavern

Online veröffentlicht: 04. Apr. 2018

Seitenbereich: 141 - 154

Eingereicht: 06. Sept. 2016

DOI: https://doi.org/10.1515/heem-2017-0009

Schlüsselwörter
potential flow, Stokes flow, Navier-Stokes flow, BEM, OpenFOAM

© 2017 Dzmitry Prybytak et al., published by De Gruyter Open

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

A Comparison of Simplified Two-dimensional Flow Models Exemplified by Water Flow in a Cavern

Online veröffentlicht: 04. Apr. 2018

Seitenbereich: 141 - 154

Eingereicht: 06. Sept. 2016

DOI: https://doi.org/10.1515/heem-2017-0009

Schlüsselwörterpotential flow, Stokes flow, Navier-Stokes flow, BEM, OpenFOAM

© 2017 Dzmitry Prybytak et al., published by De Gruyter Open

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

Schlüsselwörter
potential flow, Stokes flow, Navier-Stokes flow, BEM, OpenFOAM