Efficiency of energy dissipation during filling of the navigation lock

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00368688" target="_blank" >RIV/68407700:21110/23:00368688 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.aip.org/aip/acp/article/2928/1/170011/2913370/Efficiency-of-energy-dissipation-during-filling-of?searchresult=1" target="_blank" >https://pubs.aip.org/aip/acp/article/2928/1/170011/2913370/Efficiency-of-energy-dissipation-during-filling-of?searchresult=1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0170784" target="_blank" >10.1063/5.0170784</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Efficiency of energy dissipation during filling of the navigation lock

Popis výsledku v původním jazyce

As part of the research focusing on the optimization of the lock filling, the minimization of the longitudinal force during the direct filling of the lock was tested. The longitudinal force was minimized by modifying the geometry of the stilling basin under the Tainter gate using CFD models. Four geometries of the stilling basin were tested using the geometry of the Děčín Lock. These CFD models were verified using data measured on a physical model. By modifying the geometry of the stilling basin, it is possible to reduce the longitudinal force caused by the momentum decrease in longitudinal direction of the chamber and the force caused by the impact of the filling jet against the bow of the ship. Research has shown that by optimizing the upper head and the stilling basin, the monitored forces can be reduced by up to 15 times. Although direct filling is designed for navigation locks with a low head (up to 3 m), this design of the lock head can be used for locks with a head above 5 m. It is possible to eliminate longitudinal force during direct filling of the lock without structural modifications, making it possible to increase the capacity of historic locks on the Elbe-Vltava Waterway (Czech Republic) without impacting the architectural character of the locks. The research was conducted as part of project no. DG18P02OVV004 entitled “Documentation and presentation of technical cultural heritage along the Elbe-Vltava Waterway” within a support programme for applied research and experimental development of national and cultural identity, funded by the Ministry of Culture of the Czech Republic.

Název v anglickém jazyce

Efficiency of energy dissipation during filling of the navigation lock

Popis výsledku anglicky

As part of the research focusing on the optimization of the lock filling, the minimization of the longitudinal force during the direct filling of the lock was tested. The longitudinal force was minimized by modifying the geometry of the stilling basin under the Tainter gate using CFD models. Four geometries of the stilling basin were tested using the geometry of the Děčín Lock. These CFD models were verified using data measured on a physical model. By modifying the geometry of the stilling basin, it is possible to reduce the longitudinal force caused by the momentum decrease in longitudinal direction of the chamber and the force caused by the impact of the filling jet against the bow of the ship. Research has shown that by optimizing the upper head and the stilling basin, the monitored forces can be reduced by up to 15 times. Although direct filling is designed for navigation locks with a low head (up to 3 m), this design of the lock head can be used for locks with a head above 5 m. It is possible to eliminate longitudinal force during direct filling of the lock without structural modifications, making it possible to increase the capacity of historic locks on the Elbe-Vltava Waterway (Czech Republic) without impacting the architectural character of the locks. The research was conducted as part of project no. DG18P02OVV004 entitled “Documentation and presentation of technical cultural heritage along the Elbe-Vltava Waterway” within a support programme for applied research and experimental development of national and cultural identity, funded by the Ministry of Culture of the Czech Republic.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/DG18P02OVV004" target="_blank" >DG18P02OVV004: Dokumentace a prezentace technického kulturního dědictví na Labsko-vltavské vodní cestě</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

7th World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium - WMCAUS 2022

ISBN

—

ISSN

0094-243X

e-ISSN

1551-7616

Počet stran výsledku

7

Strana od-do

1-7

Název nakladatele

AIP Conference Proceedings

Místo vydání

New York

Místo konání akce

Praha

Datum konání akce

5. 9. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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