MODIFICATION AND VERIFICATION OF NUMERICAL ALGORITHMS FOR DAM-BREAK FLOW OVER A HORIZONTAL BED

G. Yu Evtushok; A. V. Boiko; S. N. Yakovenko; E. E. Yakovenko; K. C. Chang

doi:10.1134/S0021894421020097

MODIFICATION AND VERIFICATION OF NUMERICAL ALGORITHMS FOR DAM-BREAK FLOW OVER A HORIZONTAL BED

G. Yu Evtushok, A. V. Boiko, S. N. Yakovenko, E. E. Yakovenko, K. C. Chang

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Abstract: Numerical simulation of dam-break water flow over a horizontal dry bed has been performed. We have modified and verified computational techniques, including methods for determining the position of the interface and the continuum model for the surface tension force implemented in the PIFI code, as well as the OpenFOAM software with the interFoam solver and various cases of the two-parameter k-ϵ model with corrections made taking into account the behavior of flows in regions of low Reynolds numbers. Calculated integral characteristics of dam-break flow were analyzed and compared with measured data. It is shown that taking into account surface tension and using an adequate turbulence model leads to deceleration of water flow and hence to a decrease in the velocity of the wave front, resulting in better agreement between the results of calculations and laboratory experiments.

Original language	English
Pages (from-to)	255-265
Number of pages	11
Journal	Journal of Applied Mechanics and Technical Physics
Volume	62
Issue number	2
DOIs	https://doi.org/10.1134/S0021894421020097
Publication status	Published - 2021 Mar

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "MODIFICATION AND VERIFICATION OF NUMERICAL ALGORITHMS FOR DAM-BREAK FLOW OVER A HORIZONTAL BED",

abstract = "Abstract: Numerical simulation of dam-break water flow over a horizontal dry bed has been performed. We have modified and verified computational techniques, including methods for determining the position of the interface and the continuum model for the surface tension force implemented in the PIFI code, as well as the OpenFOAM software with the interFoam solver and various cases of the two-parameter k-ϵ model with corrections made taking into account the behavior of flows in regions of low Reynolds numbers. Calculated integral characteristics of dam-break flow were analyzed and compared with measured data. It is shown that taking into account surface tension and using an adequate turbulence model leads to deceleration of water flow and hence to a decrease in the velocity of the wave front, resulting in better agreement between the results of calculations and laboratory experiments.",

author = "Evtushok, {G. Yu} and Boiko, {A. V.} and Yakovenko, {S. N.} and Yakovenko, {E. E.} and Chang, {K. C.}",

note = "Funding Information: The work was carried out within the state assignment of the Ministry of Science and Higher Education of the Russian Federation (state registration number ). Publisher Copyright: {\textcopyright} 2021, Pleiades Publishing, Ltd.",

year = "2021",

month = mar,

doi = "10.1134/S0021894421020097",

language = "English",

volume = "62",

pages = "255--265",

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AU - Evtushok, G. Yu

AU - Boiko, A. V.

AU - Yakovenko, S. N.

AU - Yakovenko, E. E.

AU - Chang, K. C.

N1 - Funding Information: The work was carried out within the state assignment of the Ministry of Science and Higher Education of the Russian Federation (state registration number ). Publisher Copyright: © 2021, Pleiades Publishing, Ltd.

PY - 2021/3

Y1 - 2021/3

N2 - Abstract: Numerical simulation of dam-break water flow over a horizontal dry bed has been performed. We have modified and verified computational techniques, including methods for determining the position of the interface and the continuum model for the surface tension force implemented in the PIFI code, as well as the OpenFOAM software with the interFoam solver and various cases of the two-parameter k-ϵ model with corrections made taking into account the behavior of flows in regions of low Reynolds numbers. Calculated integral characteristics of dam-break flow were analyzed and compared with measured data. It is shown that taking into account surface tension and using an adequate turbulence model leads to deceleration of water flow and hence to a decrease in the velocity of the wave front, resulting in better agreement between the results of calculations and laboratory experiments.

AB - Abstract: Numerical simulation of dam-break water flow over a horizontal dry bed has been performed. We have modified and verified computational techniques, including methods for determining the position of the interface and the continuum model for the surface tension force implemented in the PIFI code, as well as the OpenFOAM software with the interFoam solver and various cases of the two-parameter k-ϵ model with corrections made taking into account the behavior of flows in regions of low Reynolds numbers. Calculated integral characteristics of dam-break flow were analyzed and compared with measured data. It is shown that taking into account surface tension and using an adequate turbulence model leads to deceleration of water flow and hence to a decrease in the velocity of the wave front, resulting in better agreement between the results of calculations and laboratory experiments.

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MODIFICATION AND VERIFICATION OF NUMERICAL ALGORITHMS FOR DAM-BREAK FLOW OVER A HORIZONTAL BED

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