Modelování proudění na stupňovitých skluzech s nízkým podélným sklonem.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F08%3APU79156" target="_blank" >RIV/00216305:26110/08:PU79156 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Modelling of flow over low gradient stepped chutes.

Popis výsledku v původním jazyce

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 canbe 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 wasmade 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 s

Název v anglickém jazyce

Modelling of flow over low gradient stepped chutes.

Popis výsledku anglicky

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 canbe 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 wasmade 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 s

Druh

D - Stať ve sborníku

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Hydraulic structures: proceedings of the second international junior researcher and engineer workshop on hydraulic structures.

ISBN

978-88-8492-568-8

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

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Název nakladatele

Edizioni Plus - Pisa university press

Místo vydání

Lungarno Pacinotti 56126 Pisa Itálie

Místo konání akce

University of Pisa Pisa Itálie

Datum konání akce

30. 7. 2008

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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