Published: Građevinar 73 (2021) 9
Paper type: Professional paper
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Mathematical modelling of flow and sediment transport – the Tisa dam case study
Abstract
High flow velocities downstream of the Tisa Dam at Novi Bečej (Serbia), produced by the large difference between water levels in the upstream and downstream reaches, cause bank erosion by the right bank immediately downstream of the emergency spillway, threatening stability of the dam itself. Due to complex interaction between the parameters of flow and sediment transport at the given location, an approach involving a spatial (3D) mathematical model of flow and sediment transport, aimed at solving such complex processes, is investigated in this paper. An optimum solution meeting all requirements for the stability of structures in question has been reached by the model, through comparison of the results generated by the existing conditions with the result provided by the measures proposed to fix the problems.
Keywordsfluvial hydraulics, flow and sediment transport, mathematical modelling, sediment mixtures
