Analysis of Shear Stress and Stream Power Spatial Distributions for Detection of Operational Problems in the Stare Miasto Reservoir
| Autor: | Joanna Wicher-Dysarz |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
lcsh:TD201-500
lcsh:Hydraulic engineering Flood myth Wave propagation Geography Planning and Development stream power Aquatic Science Structural basin Biochemistry shear stress Reservoir operation lcsh:Water supply for domestic and industrial purposes Shear (geology) lcsh:TC1-978 operational problem Shear stress two-stage reservoir Spatial variability 2D model flow Geomorphology Stream power Geology Water Science and Technology |
| Zdroj: | Water, Vol 11, Iss 4, p 691 (2019) Water Volume 11 Issue 4 |
| ISSN: | 2073-4441 |
| Popis: | In this paper an analysis of the lowland reservoir operation in atypical conditions is presented. The chosen study object is the Stare Miasto reservoir in the Powa river (Poland), which has been in operation since 2006. It is a two-stage reservoir, consisting of an upper sedimentation part and a lower main reservoir. The upper part is separated from the main part by an internal dam with a sluice gate. Such a construction enabled better control of sediment deposits and their removal. The atypical conditions were caused by flood wave propagation in the Powa river and the reservoir in 2014. In the research, three reservoir bathymetries are analyzed&mdash from 2006, 2013, and 2018. Two-dimensional (2D) hydrodynamic modeling is applied to analyze spatial variability of investigated hydraulic parameters. Such an approach enabled better recognition of the changes observed in the reservoir during 2006&ndash 2018. In the research, the spatial distributions of the velocities, the shear stresses, and the stream power are the basis for the analyses and comparisons. The simulations enabled identification of the main elements prone to collapse during flood wave propagation. The presented results and approach may be applied for improvement of reservoir design, with special emphasis on specific structures located in a reservoir basin. |
| Databáze: | OpenAIRE |
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