THE INFLUENCE OF CURRENT ON THE HEIGHT OF WIND WAVE RUN-UP. A comparison of experimental results with the Czech National Standard

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F12%3APU100046" target="_blank" >RIV/00216305:26110/12:PU100046 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.2478/v10098-012-0015-2" target="_blank" >http://dx.doi.org/10.2478/v10098-012-0015-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2478/v10098-012-0015-2" target="_blank" >10.2478/v10098-012-0015-2</a>

Jazyk výsledku

angličtina

Název v původním jazyce

THE INFLUENCE OF CURRENT ON THE HEIGHT OF WIND WAVE RUN-UP. A comparison of experimental results with the Czech National Standard

Popis výsledku v původním jazyce

One of the basic questions related to the safety of dikes and river levees is the size of the freeboard. One of the important parameters for freeboard design is the height of waves and wave run-up on levee slopes. Routine and standardised calculations of wave run-up deal with the freeboards of dams where wind waves originate on the still water of the reservoir. In the case of running water in streams (thereinafter only currents) the effect of wave and current interaction on wave run-up is usually not taken into account due to the lack of reliable knowledge regarding the phenomenon. In the Czech Republic this question is topical in the case of large rivers such as the Elbe, the Vltava and the Morava. Within the framework of the projects Hydralab III and NAZV QI 92A139, hydraulic research and further analysis focused on wave run-up as a result of the combination of current and wind wave parameters were performed. The laboratory research was carried out in a hydraulic flume with a wavemaker on the right bank and a levee with a slope of 1:3 installed on the left bank opposite the wavemaker. Waves were generated both perpendicular and oblique to the levee axis; the angle of oblique wave attack varied within the range of 30 degree Celsia. The aim of this paper is to compare the results of the mentioned research with recommendations mentioned in the Czech National Standard CSN 75 0255 Calculation of wave effects on water structures and to quantify the effect of current on the wave run-up height.

Název v anglickém jazyce

THE INFLUENCE OF CURRENT ON THE HEIGHT OF WIND WAVE RUN-UP. A comparison of experimental results with the Czech National Standard

Popis výsledku anglicky

One of the basic questions related to the safety of dikes and river levees is the size of the freeboard. One of the important parameters for freeboard design is the height of waves and wave run-up on levee slopes. Routine and standardised calculations of wave run-up deal with the freeboards of dams where wind waves originate on the still water of the reservoir. In the case of running water in streams (thereinafter only currents) the effect of wave and current interaction on wave run-up is usually not taken into account due to the lack of reliable knowledge regarding the phenomenon. In the Czech Republic this question is topical in the case of large rivers such as the Elbe, the Vltava and the Morava. Within the framework of the projects Hydralab III and NAZV QI 92A139, hydraulic research and further analysis focused on wave run-up as a result of the combination of current and wind wave parameters were performed. The laboratory research was carried out in a hydraulic flume with a wavemaker on the right bank and a levee with a slope of 1:3 installed on the left bank opposite the wavemaker. Waves were generated both perpendicular and oblique to the levee axis; the angle of oblique wave attack varied within the range of 30 degree Celsia. The aim of this paper is to compare the results of the mentioned research with recommendations mentioned in the Czech National Standard CSN 75 0255 Calculation of wave effects on water structures and to quantify the effect of current on the wave run-up height.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/QI92A139" target="_blank" >QI92A139: Výzkum metod zvyšujících vodohospodářskou účinnost malých vodních nádrží s ohledem na rizika předpokládaných klimatických změn</a><br>

Návaznosti

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

Rok uplatnění

2012

Kód důvěrnosti údajů

U - Předmět řešení projektu je utajovanou skutečností podle zvláštních právních předpisů nebo je skutečností, jejíž zveřejnění by mohlo ohrozit činnost zpravodajské služby. Údaje o projektu jsou upraveny tak, aby byly zveřejnitelné

Název periodika

Journal of Hydrology and Hydromechanic

ISSN

0042-790X

e-ISSN

1338-4333

Svazek periodika

60

Číslo periodika v rámci svazku

3/2012

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

11

Strana od-do

174-184

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-84865993877