Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7657
Title: Effect of the armor crest freeboard relative to the crown wall freeboard on wave overtopping for simple rubble mound slopes
Authors: Özbahçeci, Bergüzar
Bilyay, Engin
Keywords: Armor crest freeboard
Crown wall freeboard
Hydraulic model experiment
Prediction formula
Rubble mound breakwater
Wave overtopping
Issue Date: Dec-2018
Publisher: Elsevier Ltd.
Source: Özbahçeci, B., and Bilyay, E. (2018). Effect of the armor crest freeboard relative to the crown wall freeboard on wave overtopping for simple rubble mound slopes. Ocean Engineering, 169, 511-528. doi:10.1016/j.oceaneng.2018.09.043
Abstract: Several studies have been carried out to investigate the effect of crest parameters on the wave overtopping for armored slopes with crown walls. However, the effect of the armor crest freeboard is still under question. In this study, for the first time, a series of hydraulic model experiments are conducted specifically to investigate how the armor crest freeboard relative to the crown wall freeboard affects the wave overtopping rate. Experimental results indicate that while the armor crest freeboard lower than the crown wall freeboard is giving larger overtopping, higher armor crest freeboard is reducing the overtopping. However, this reduction is not same as the reduction due to the increase in the crown wall freeboard. The reason may be the porosity of the armor crest. For the first time, a new correction factor is proposed to describe the change in the wave overtopping due to the armor crest freeboard by using experimental results. The correction factor C Ac is applied to cover the effect of armor crest freeboard in the predictions of EurOtop (2016). The verification study present that overtopping rate predictions of corrected EurOtop (2016) are more consistent with the measured rate results compared to the predictions of the original formula, if the armor crest freeboard is not equal to the crown wall freeboard.
URI: https://doi.org/10.1016/j.oceaneng.2018.09.043
https://hdl.handle.net/11147/7657
ISSN: 0029-8018
0029-8018
Appears in Collections:Civil Engineering / İnşaat Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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