Experimental study of hydraulic response of smooth submerged breakwaters to irregular waves

• Autorzy: Mahmoudof Seyed Masoud , Hajivalie Fatemeh

Identyfikatory

DOI

10.1016/j.oceano.2021.05.002

• Języki publikacji: EN

Abstrakty

EN

This paper presents the results of a laboratory experiment on transmission, reflection, and dissipation of irregular waves over smooth impermeable submerged breakwaters. Experiments included 75 JONSWAP-based irregular waves with five different wave characteristics generated at three water depths in a 2D wave flume. The investigated breakwater sections were three rectangular breakwaters with different widths, a toothed rectangular breakwater, and a trapezoidal breakwater with a slope of 1:2. A new comprehensive dimensionless parameter (β) was proposed representing both wave hydrodynamic and breakwater geometry characteristics. This parameter could be employed as a suitable descriptive option to make an accurate estimate of the hydraulic performances of submerged breakwaters. The β parameter is composed of four conventional simple dimensionless variables. However, the results revealed that the relative submergence depth significantly affects the hydraulic responses of submerged breakwaters. The transmission, reflection and dissipation of waves show a logarithmic growth, a logarithmic reduction, and a quadratic decreasing trend against the increasing of β parameter, respectively. The verifications of results revealed the high efficiency of β parameter for data reported by Carevic et al. (2013) with R² = 0.88 and high agreement with predictions made by Van der Meer et al. (2005) formulation with R² = 0.93.

Słowa kluczowe

EN

impermeable submerged breakwaters; laboratory measurements; transmission; reflection; dissipation

• Wydawca: Polish Academy of Sciences, Institute of Oceanology ; Elsevier
• Czasopismo: Oceanologia
• Rocznik: 2021
• Tom: No. 63 (4)
• Strony: 448--462
• Opis fizyczny: Bibliogr. 34 poz., fot., rys., tab., wykr.

Twórcy

autor

Mahmoudof Seyed Masoud

• Iranian National Institute for Oceanography and Atmospheric Sciences (INIOAS), Tehran, Iran

autor

Hajivalie Fatemeh

• Iranian National Institute for Oceanography and Atmospheric Sciences (INIOAS), Tehran, Iran
• Ghent University, Department of Civil Engineering, Technologiepark 60, 9052, Ghent, Belgium

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