Assessment of the Influence of a Multilevel Protective Column on the Spread of Mud-stone Admixture During a Dam Break
Issakhov A. Borsykbaev A. Abylkassymova A.
January 2025Springer Science and Business Media B.V.
Water Resources Management
2025#39Issue 2603 - 623 pp.
The present study considers the behavior of a complex water-mudstone volume of a mudflow in a configuration with an arcuate lateral curvature. The system of 3D Reynolds-averaged Navier–Stokes equations was closed-loop in combination with the k-eps turbulent model. The volume of fluid (VOF) method was used to perform numerical simulations. For the correct description of the water flow and sedimentary flow, a modification of the mathematical model was carried out. Thus, the Newtonian model was used to describe the water flow, while the non-Newtonian model was used to describe the sedimentary layer. The modified model was validated using a test problem that had experimental and numerical data. The obtained results showed that the use of a multi-level protective column had a positive effect. So it can be seen that the movement of water at the initial moment occurs in a more accelerated form, while after a certain time the velocity value drops noticeably, which leads to the braking of the mixture downstream, which in the future can give an advantage for emergency evacuation of people. So, by the end of the channel, the difference reaches up to 2.5 s compared to without a number of protective cylindrical columns.
Dam Break Modeling , DPM and MPM Models , Flood Zones , Mud-stone Admixture , Multilevel Protective Column
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Al-Farabi Kazakh National University, Almaty, Kazakhstan
Kazakh British Technical University, Almaty, Kazakhstan
International Information Technology University, Almaty, Kazakhstan
Al-Farabi Kazakh National University
Kazakh British Technical University
International Information Technology University
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