The Role of Wind in Wave Runup and Overtopping of Coastal Structures

González-Escrivá, Jose A.

doi:10.1142/9789812709554_0399

Cited by 6 publications

(6 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As the wind velocity increased, lower-frequency waves in the range of 0 to 0.4 Hz showed higher spectral densities. This is consistent with the result of González-Escrivá [29], where the wind intensity was positively correlated with an increase in the spectrum within the low-frequency region. The wave spectra exhibited different characteristics for each of the three sections.…”

Section: Wave Spectrumsupporting

confidence: 92%

“…The wave spectra exhibited different characteristics for each of the three sections. This means that the higher the wind velocity, the greater the number of waves with high energy, which is similar to the result reported by González-Escrivá [29]. In the 0.4 to 1.0 Hz range, the spectra for the various wind velocities were almost identical.…”

Section: Wave Spectrumsupporting

confidence: 88%

See 1 more Smart Citation

Experimental Study on the Effect of Wind on Armor Stone Stability

Kim,

Lim,

Yoon

2024

JMSE

View full text Add to dashboard Cite

Wind is a significant factor influencing the stability of breakwater armor stones. However, few existing studies have considered the effects of wind on these structures. In this study, two-dimensional laboratory experiments were conducted to examine the effect of wind on the stability of breakwater armor stones. The stability factor (KD) of the armor stone, fluid velocity, runup, and rundown were observed under the action of waves and winds. A wind turbine was installed in front of the physical model of the breakwater to generate extreme wind conditions of 5.5 and 12 m/s. The results showed that KD decreased by 42.18% at 5.5 m/s and 57.82% at 12 m/s compared with that without wind. The maximum runup and rundown heights increased with wind velocity, following a Rayleigh distribution. The fluid velocity distribution conformed to a normal distribution, with the mean velocity directed offshore. Many studies have suggested that runup, rundown, and fluid velocity are the main factors affecting the stability of breakwater armor stones. The analysis revealed that wind affects these factors and lowers the stability coefficient. These wind-induced hydrodynamic changes suggest the need for a detailed hydrodynamic review of wind-wave conditions.

show abstract

Section: Wave Spectrumsupporting

confidence: 92%

Section: Wave Spectrumsupporting

confidence: 88%

Experimental Study on the Effect of Wind on Armor Stone Stability

Kim,

Lim,

Yoon

2024

JMSE

View full text Add to dashboard Cite

show abstract

“…Additional effects caused by high wind velocities, such as the deformation of wave fields and the generation and transport of spray, which directly influence wave run-up, are discussed by Ward et al (1998) and González-Escrivá (2006). However, only a small amount of research data can be found regarding the effects of these factors on both wave height and run-up.…”

Section: Literature Reviewmentioning

confidence: 99%

Wave Run-Ups and Overtopping Affected by Oblique Wave Approaches and Currents

Špano

Bornschein²,

Pohl

et al. 2022

Slovak Journal of Civil Engineering

View full text Add to dashboard Cite

To quantify the effect of a current on the height of a wave’s run-up and overtopping combined with an oblique wave approach, the “FlowDike” hydraulic research project was carried out. Tests were performed on two dike slopes of 1:3 and 1:6. Waves were generated across (perpendicular to) the physical model and also inclined in-plane to the stream axis. Oblique waves were generated both towards and along the flow’s direction. The effect of the current and of the wave direction on the height of the wave run-up and amount of the wave overtopping was expressed by means of a combined correction factor for the wave’s inclination and flow velocity. The results of the research confirmed that the flow velocity had only a small effect.

show abstract

“…Some information on additional effects caused by high wind velocity (deformation of wave fields, generation and transport of spray, direct influences on wave run-up) is given by Ward et al (1996) and Gonzalez-Escriva (2006). However, only a little research data can be found regarding the effects of these factors on wave height and run-up.…”

Section: Literature Reviewmentioning

confidence: 99%

The Influence of Current on the Height of Wind Wave Run-Up: A comparison of experimental results with the Czech National Standard

Říha¹,

Špano²

2012

Journal of Hydrology and Hydromechanics

View full text Add to dashboard Cite

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°. 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. Jednou ze základních otázek spojených s bezpečností hráze je návrh převýšení její koruny nad maximální hladinou vzdouvané vody. Důležitým parametrem ovlivňujícím návrh převýšení je výška vln vybíhajících po svahu hráze. Běžné postupy výpočtu výšky výběhu vlny na svah jsou realizovány za předpokladu, že vlny vznikají na stojatých vodách. Vliv proudění se obvykle vzhledem k nízké úrovni znalostí tohoto jevu na tekoucích vodách zanedbává. V podmínkách České Republiky je otázka vlivu proudění na výšku výběhu relevantní zejména na velkých tocích jako Labe, Vltava nebo Morava. V rámci projektů Hydralab III a NAZV QI 92A139 byl uskutečněn hydraulický výzkum a analýza dat se speciálním zaměřením na výšku výběhu větrových vln při započtení vlivu proudění. Výzkum byl realizován na modelu hráze se sklonem svahu 1 : 3, který byl umístěn ve zkušební nádrži osazené vlnoproduktorem vedeným rovnoběžně s modelem hráze. Vlny zde byly generovány jednak kolmo vzhledem k podélné ose hráze, jednak šikmo v rozsahu úhlů ± 30°. Výsledky výzkumu byly porovnány s doporučeními uvedenými v České státní normě ČSN 75 0255 Výpočet účinků vln na stavby na vodních nádržích a zdržích.KLÍČOVÁ SLOVA: ochranná hráz, hrázka, větrová vlna, výška vlny, výběh vlny, proudění, návrh převýšení.

show abstract

The Role of Wind in Wave Runup and Overtopping of Coastal Structures

Cited by 6 publications

References 0 publications

Experimental Study on the Effect of Wind on Armor Stone Stability

Experimental Study on the Effect of Wind on Armor Stone Stability

Wave Run-Ups and Overtopping Affected by Oblique Wave Approaches and Currents

The Influence of Current on the Height of Wind Wave Run-Up: A comparison of experimental results with the Czech National Standard

Contact Info

Product

Resources

About