The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In the paper are shown analysis’ results of bedload transport variability during fl ood fl ow event observed in the Zagożdżonka River. The bedload measurement station, which is provided with bedload trap and instruments for continuous measuring and data recording, is located upstream of Czarna gauge station on research catchment area of Dept. of Hydraulic Engineering and Environmental Recultivation...
Using optical features of water and suspended sediment, series of imageries of Polish rivers (mainly of Vistula River) and Loire River in France were registered from aircraft, beginning from 1990, at fi rst with video- computer technique, later using the own aircraft system for fl uent digital registration of a terrain. In the selected examples were presented images of suspended sediment with spatial...
The main areas on water structures in which sediment gathers are headwater, hollows in construction and tailwater. The processes of accumulation of upstream and downstream positions develop according to duration of the object’s exploitation. This article analyses working conditions of an elongated pipeline of culvert in Potok Służewiecki stream. These conditions were examined with the aim to evaluate...
The scour below the dam is numerically simulated using an Eulerian two-phase model that implements Euler-Euler coupled governing equation for fl uid and solid phase and a modifi ed k-ε turbulence closure for the fl uid phase and comparison with laboratory results. The modeling system being a part of CFD software package FLUENT. Both fl ow-particle and particle-particle interactions are considered...
On the border sector of Odra River between Chałupki town and Olza mouth unique meanders occur, with dynamic river-bed processes. As a result of the 1997-fl ood, the meander no. I was broken and the river route has been shorted. The authors sampled sediments from Odra river and evaluated incipient motion and suspension. At present, river-bed at entry to meander no I is armored. The resistance coeffi...
The measurement’s and calculation’s results of sediment transport delivered from the Zagożdżonka River catchment into the Staw Górny reservoir are presented in the paper. The measured mean silting of reservoir in time period 1980–2003 was 1142 m3 per year. Prediction calculations carried out by using different empirical formulas shown a good compatibility of results obtained from calculation and measured...
Building roads and accompanying facilities in river valleys lead to partition and limitation of wild animals’ nesting sites. They also obstruct migration of certain spieces and organisms moving wit water. The task of water structures is to maintain damming as well as bed gradient, protect river bed against erosion and transport river sediment by dam section. This article analyses working conditions...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.