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Type of publication: Straipsnis konferencijos medžiagoje Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or Scopus DB conference proceedings (P1a)
Field of Science: Aplinkos inžinerija / Environmental engineering (T004)
Author(s): Vaikasas, Saulius
Title: Mathematical modelling of flow dynamics of the urban river Nevezis in Kedainiai
Is part of: The 7th International conference "Environmental engineering": selected papers, May 22-23, 2008 Vilnius, Lithuania. Vol. 2. Vilnius : Technika, 2008
Extent: p. 758-763
Date: 2008
Keywords: Modelling;Riverbed process;Vegetation and deposits
ISBN: 9789955282648
Abstract: The dynamics of flow velocities and water level in the Nevėžis River in Kėdainiai was estimated by applying a hydraulic-mathematical model DELTA. It was established that there were no conditions for a non-desirable riverbed siltation. During the dry season flow velocity in the examined section does not exceed 0.5 m/s. When the discharge Q=70 m3/s affects the formation of the riverbed, the flow velocity reaches 1.2–1.3 m/s and accumulated bed sediments are washed away. A twometers high dam near Skongalis does not stimulate bed silting too, because it is not high and it can barely influence bed formation processes or reduce the riverside overgrowth. When the water level is low and the flow velocity is small (0.1 m/s), the water in the river is only slightly turbid (turbidity is 2–6 mg/l). In order to improve the esthetical view of the river, it is advisable to regulate the riverbed by reducing the river width at its wide sections up to 30 m
Affiliation(s): Vilniaus Gedimino technikos universitetas
Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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