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1 Studia Geotechnica et Mechanica

1 2012

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Modelling spillway flow conditions at Złotniki storage reservoir on the Kwisa river

Machajski J., Olearczyk D.

Studia Geotechnica et Mechanica

2012

Vol. 34, nr 1

35-49

An important part of the work connected with planning modernization of outlet devices of Złotniki storage reservoir on the Kwisa river was numerical modelling of flow conditions in the flume of the side-channel spillway. The modelling was preceded by the analysis of operating principles of such a device and performing analytical calculations that defined the spillway capacity ability as a function of the required water levels in the reservoir and the conditions of water flow through the flume that are significant to spillway operation. The results of the numerical modelling performed pointed to the evident need to reconstruct this device, guaranteeing exploitation safety of the reservoir, mainly in view of the computational discharges, exceeding considerably the nominal capacity ability of the reservoir's outlet installation in the existing constructional state.