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W pracy przedstawiono wyniki badań wpływu szykan na długość odskoku hydraulicznego. Badania przeprowadzono na modelu jazu z wypływem wody spod zasuwy i niecką wypadową, w której dodatkowo zastosowano szykany w dwóch różnych ustawieniach. Długość odskoku wyznaczano na podstawie wyników pomiarów prędkości strumienia na wypadzie. Pomierzone długości odskoku porównano z wartościami obliczonymi wzorami...
The paper presents results of laboratory tests, purpose was to recognize distributions of flow velocity in the local scour. Investigations were conducted on model of weir with overflow under closure, bottom of water basins, horizontal bed protection in downstream and scouring area. As eroded material on model sorted sand was used with d50 = 1.1 mm. Results analysis was conducted in order to establish...
Results the investigation of length of submerged hydraulic jump are presented. Experiments were conducted on model taired construction with the outfl ow under the closure and with bottom stilling basins. Schema of investigated model and hydraulic parameters are typical for low head structures existing in the field. Measured length of hydraulic jump was compared with calculated according to different...
In paper are presented investigation results of scour downstream of weir for different roughness of bed protection. Investigations were conducted on model construction with stilling pool and horizontal bed protection about 1.0 m long. The bed protection in downstream was made as concrete and as riprap with relative roughness k = 0.028. As bed material in experiments was used sand (d50 = 1.1 mm, (d84/d16)0...
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