Experimental Investigation on Solitary Wave Run-Down and Its Effects on Armor Units

Gedik, Nuray; İrtem, Emel; Kabdaşlı, M. Sedat

doi:10.1142/s0578563406001465

Cited by 5 publications

(4 citation statements)

References 15 publications

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“…The piston was a pneumatic cylinder, driven by a manually controlled system. As the piston moves vertically, the plate lifts off and displaces the adjacent fluid, thereby generating long waves [37,38].…”

Section: Methodsmentioning

confidence: 99%

Experimental Investigation on Reflection and Energy Loss of Tsunami Over the Permeable Beach

Gedik¹

2017

ANADOLU UNIVERSITY JOURNAL OF SCIENCE AND TECHNOLOGY a - Applied Sciences and Engineering

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The aim of this study is to investigate the reflection coefficient and the energy loss of tsunami as experimentally. The beach was built as a natural sandy one with grain diameter of 0.35 mm and the specific gravity of 2.63. The slopes of the beach were selected as 1/1.5, 1/5 and 1/8, respectively. As a result of experimental investigations, beach slope, tsunami run-up height, incident and reflecting wave heights, the characteristics of the beach material, and specific gravity of the water were determined as the parameters having the effect on both the reflection coefficient of tsunami and wave energy loss. These parameters are obtained as a dimensionless group via Buckingham's Pi theorem. In addition, considering regression analysis, the relationship giving as dimensionless wave energy loss was proposed. The additional experiments were performed for different slopes that are 1/2.5, 1/3.5 and 1/6.5, respectively in order to verify the proposed equations derived from the study. Furthermore, the total energy values of the incident and the reflecting waves were calculated from the equation given in Coastal Engineering Manuel (CEM). These results were compared with the results of the proposed equations, and it was shown that there was a good agreement between the results.

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Section: Methodsmentioning

confidence: 99%

Experimental Investigation on Reflection and Energy Loss of Tsunami Over the Permeable Beach

Gedik¹

2017

ANADOLU UNIVERSITY JOURNAL OF SCIENCE AND TECHNOLOGY a - Applied Sciences and Engineering

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“…One end of the pallet was hinged to the bottom of channel and the other end was controlled by a pneumatic piston (Fig 1). Detailed working mechanism of the wave maker was presented by Gedik (2004) and Gedik et. al (2005).…”

Section: Methodsmentioning

confidence: 99%

“…Some experimental studies conducted by different researchers in this special wave channel. Gedik (2004) and Gedik et al (2005) investigated long wave run-up and Gedik ( 2006) investigated run-down of this wave. In addition, Baş (2007) and Yüce (2007) conducted experimental studies in this channel about stability of rubble mound breakwaters and vertical faced coastal structures under N-wave generated in same channel, respectively.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Effects of Coastal Morphology on N-Waves

Bagci

Kabdaşlı

2015

International Journal of Environment and Geoinformatics

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A Leading Depression N-wave which consists of a negative and a positive amplitude solitary wave was generated with the help of a special designed wave pallet at Istanbul Technical University Hydraulic Laboratory. In addition, generated N-Wave was verified by using verification of related analytical equations. Furthermore, the wave flume was narrowed by narrowing angles of 5, 10 and 15 for analogy to morphology changes in coastal areas. It was determined that water level differences and phase shifts occurred to the narrowing effects.

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“…Wave run-up at the coastline is mainly depends on the offshore wave conditions such as height, length, and velocity of waves and on the coastal geometry and topography [7]. Several previous studies have been devoted to predict waves propagation and determine the height of run-up along the coastlines [8,9,10,11,12,13,14,15,16,17,18]. Synolakis [19,20] performed theoretical and experimental study to analyze the evolution of non-breaking and breaking solitary waves and approximated the wave maximum run-up, as well as the breaking criterion when the wave climbs up the sloping breach.…”

Section: Introductionmentioning

confidence: 99%

A numerical model preserving nontrivial steady-state solutions for predicting waves run-up on coastal areas

Karjoun¹,

Beljadid²

2022

Preprint

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In this study, a numerical model preserving a class of nontrivial steady-state solutions is proposed to predict waves propagation and waves run-up on coastal zones. The numerical model is based on the Saint-Venant system with source terms due to variable bottom topography and bed friction effects. The resulting nonlinear system is solved using a Godunov-type finite volume method on unstructured triangular grids. A special piecewise linear reconstruction of the solution is implemented with a correction technique to ensure the accuracy of the method and the positivity of the computed water depth. Efficient semi-implicit techniques for the friction terms and a well-balanced formulation for the bottom topography are used to exactly preserve stationary steady-state s solutions. Moreover, we prove that the numerical scheme preserves a class of nontrivial steady-state solutions. To validate the proposed numerical model against experiments, we first demonstrate its ability to preserve nontrivial steady-state solutions and then we model several laboratory experiments for the prediction of waves run-up on sloping beaches. The numerical simulations are in good agreement with laboratory experiments which confirms the robustness and accuracy of the proposed numerical model in predicting waves propagation on coastal areas.

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Experimental Investigation on Solitary Wave Run-Down and Its Effects on Armor Units

Cited by 5 publications

References 15 publications

Experimental Investigation on Reflection and Energy Loss of Tsunami Over the Permeable Beach

Experimental Investigation on Reflection and Energy Loss of Tsunami Over the Permeable Beach

Experimental Investigation of Effects of Coastal Morphology on N-Waves

A numerical model preserving nontrivial steady-state solutions for predicting waves run-up on coastal areas

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