MATHEMATICAL MODELING OF WATER MOVEMENT DURING A DAM BREAK USING THE VOF METHOD

Authors

DOI:

https://doi.org/10.37943/14NEBW7927

Keywords:

dam break, VOF method, PISO algorithm, numerical simulation

Abstract

River valleys in mountainous areas are often subject to heavy rains and melting glaciers, resulting in the risk of mudflows and the destruction of hydraulic protective structures. In order to minimize the potential risk and negative outcomes of a disaster, both on an individual and environmental scale, it is crucial to possess essential information. This includes understanding the timing, location, and extent of flooding, as well as comprehending the force of water flow impact on protective structures. In the research, the numerical process of the movement of the water flow caused by the breakthrough of the dam is investigated. A two-dimensional numerical model of water flow during a dam break was constructed using the VOF method to describe the described process. With the help of the VOF method, the movement of the water surface is captured, while maintaining the law of conservation of mass. The mathematical model consists of Reynolds-averaged incompressible Navier-Stokes equations and includes the interphase equation. The turbulent k-e model was used to close the system of equations. The numerical algorithm used is PISO (Pressure-Implicit with Splitting of Operators). The obtained numerical results agree with the experimental data, indicating the developed algorithm’s reliability and accuracy. The results are presented as comparative graphs and images showing the contour of the free surface movement along the experimental reservoir. A numerical model that has been tested in this way can provide significant support in preventing the devastating consequences of a dam break and providing timely assistance during the evacuation of the population.

Author Biographies

Yedilkhan Amirgaliyev, Institute of Information and Computational Technologies, Al-Farabi Kazakh National University, Kazakhstan

Professor, Department of Computer Science

Timur Merembayev, Institute of information and computational technology, Kazakhstan

PhD, Software Engineer

Perizat Omarova, Al-Farabi Kazakh National University

Master’s degree, Postdoctoral, Department of Computer Science

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Published

2023-06-30

How to Cite

Amirgaliyev, Y. ., Merembayev, T. ., & Omarova, P. (2023). MATHEMATICAL MODELING OF WATER MOVEMENT DURING A DAM BREAK USING THE VOF METHOD. Scientific Journal of Astana IT University, 14(14), 116–126. https://doi.org/10.37943/14NEBW7927

Issue

2023: Volume 14

Section

Articles

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