About: Modelling of flow over low gradient stepped chutes.

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Modelling of flow over stepped chutes represents a complex problem. Detailed mathematical and dimensional analyses have shown that the flow is affected mainly by gravity, friction, and surface tension forces. So, requirements of dynamical similarity can be satisfied only on prototype (ML = 1). The paper describes practical application which was performed on two physical models of the Bystřička dam chute. Models were built in length scales ML = 10 and ML = 20. A scaling of measured and set parameters was made according to Froude criterion. Results from hydraulic research were compared with results from 2D numerical model of non-aerated turbulent incompressible flow k-?. The basic surveyed properties of flow were regimes of flow, position of the inception point, water and air-water levels and velocity profiles in the axis of the chute. Results of the research have shown that the aeration becomes much earlier in this case (the chute with low gradient of pseudo-bottom and with inlet from spillway channe Modelling of flow over stepped chutes represents a complex problem. Detailed mathematical and dimensional analyses have shown that the flow is affected mainly by gravity, friction, and surface tension forces. So, requirements of dynamical similarity can be satisfied only on prototype (ML = 1). The paper describes practical application which was performed on two physical models of the Bystřička dam chute. Models were built in length scales ML = 10 and ML = 20. A scaling of measured and set parameters was made according to Froude criterion. Results from hydraulic research were compared with results from 2D numerical model of non-aerated turbulent incompressible flow k-?. The basic surveyed properties of flow were regimes of flow, position of the inception point, water and air-water levels and velocity profiles in the axis of the chute. Results of the research have shown that the aeration becomes much earlier in this case (the chute with low gradient of pseudo-bottom and with inlet from spillway channe (en)
Title	Modelling of flow over low gradient stepped chutes. Modelling of flow over low gradient stepped chutes. (en)
skos:prefLabel	Modelling of flow over low gradient stepped chutes. Modelling of flow over low gradient stepped chutes. (en)
skos:notation	RIV/00216305:26110/08:PU79156!RIV11-GA0-26110___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(1M0579), P(GP103/08/P538)
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Špano, Miroslav
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta stavební
http://linked.open...dnocenehoVysledku	379964
http://linked.open...ai/riv/idVysledku	RIV/00216305:26110/08:PU79156
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	stepped chutes, hydraulic research ,Bystřička dam (en)
http://linked.open.../riv/klicoveSlovo	stepped chutes Bystřička dam hydraulic research
http://linked.open...ontrolniKodProRIV	[AD0B8FF122D9]
http://linked.open...v/mistoKonaniAkce	University of Pisa Pisa Itálie
http://linked.open...i/riv/mistoVydani	Lungarno Pacinotti 56126 Pisa Itálie
http://linked.open...i/riv/nazevZdroje	Hydraulic structures: proceedings of the second international junior researcher and engineer workshop on hydraulic structures.
http://linked.open...in/vavai/riv/obor	JN
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Quantitative analysis of scale effects of air-water mixture flow on stepped spillways. Centre for Integrated Design of Advanced Structures
http://linked.open...UplatneniVysledku	2008
http://linked.open...iv/tvurceVysledku	Špano, Miroslav
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2008-07-30 (xsd:date)
number of pages	8 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Edizioni Plus - Pisa university press
https://schema.org/isbn	978-88-8492-568-8
http://localhost/t...ganizacniJednotka	26110

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