Author(s): Tomasz Kolerski
Linked Author(s): Tomasz Kolerski
Keywords: Ice dynamics; Mathematical modeling; Wind interaction; Vistula River; Siarzewo Dam
Abstract: River regulation is an inseparable aspect of the economic progress of countries, and based on the examples of highly developed countries, it may be concluded that their development could be partially supported by properly conducted water management. The construction of dams in cold regions or areas where ice phenomena are observed in winter, requires taking into account the impact of ice on the structure and the impact of the designed facilities on ice transport. In the context of the impact of ice on structures, the design of hydrotechnical facilities should consider the determination of forces transferred to the planned facilities, the impact of ice on the operation of locks and outer ports, the load of ice on ecological compensations, erosion processes caused by the presence of ice, and increasing losses in electricity production. Large hydrotechnical facilities will also significantly influence the dynamics of ice processes, both in terms of ice cover formation and the method of ice flow during ice-breaking operations, and, above all, changes in the river's congestion potential. The aim of the work is to determine the impact of the planned investment in the form of the Siarzewo dam on the Vistula River on the ice dynamics in the newly constructed reservoir and in the section of the river directly below the planned dam. To achieve the intended goal, it was necessary to implement a mathematical model and conduct numerical simulations for possible scenarios. The calculations were used to determine the route of ice flow through the reservoir and below the reservoir, the forces with which the ice will affect the banks and bottom of the river, and the forces that the islands designed in the reservoir will have to withstand. The research covered the section of the Vistula between the existing Wloclawek barrage (km 674.850) and km 715, i. e. approximately 8 km below the planned Siarzewo barrage. Based on the conducted research, it was found, among other things, that ice dynamics in the reservoir is largely influenced by the strength and direction of the wind.
Year: 2024