Performance Evaluation of Bottom-Standing Submerged Breakwaters in Regular Waves Using the Meshless Singular Boundary Method

Senouci, Fawzi; Chioukh, Nadji; Dris, Mohammed El-Amine

doi:10.1007/s11802-019-3854-1

Cited by 9 publications

(4 citation statements)

References 21 publications

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“…Three approaches are used in this work to analyze the reflection and transmission coefficients during the wave interactions with submerged rectangular breakwater. The first approach used is the improved version of the ISBM approach that is already validated in the reference [21].…”

Section: Reflection and Transmission Coefficients Analysismentioning

confidence: 99%

“…Hence, in Figure 9, the effect of immersion ratios is studied by fixing the relative length at w/d = 2, and varying the immersion ratio into h/d = 0.25, h/d = 0.50, and h/d = 0.75. To analyze the reflection and transmission coefficients during the wave interactions with submerged rectangular breakwater, three methods are employed; the first approach To analyze the reflection and transmission coefficients during the wave interactions with submerged rectangular breakwater, three methods are employed; the first approach is the ISBM, which is already validated in the reference [21]. The second approach used is the analytical method within the plane wave model (Appendix A), and the third is the analytical method within the corrected plane wave model.…”

Section: Reflection and Transmission Coefficients Analysismentioning

confidence: 99%

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Analytical and Numerical Investigations Applied to Study the Reflections and Transmissions of a Rectangular Breakwater Placed at the Bottom of a Wave Tank

et al. 2021

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The purpose of the work presented in this paper is to study the reflection and transmission coefficients resulting from the interactions of regular waves with a rectangular breakwater sited at the bottom of a tank. The present investigation is devoted to the analysis of the reflection and transmission coefficients within the framework of linearized potential flow theory using two methods, a numerical method based on the improved version of the meshless singular boundary method, and the analytical approach within the plane wave model. The numerical method is first validated by studying the accuracy of the numerical computations with respect to the number of boundary nodes and the location of the vertical boundaries of the computational domain, for different immersion ratios (h/d) and different relative lengths (w/d) of the obstacle. To assess the limitations of the analytical approach, a comparison analysis is carried out between the analytical and numerical results. To improve the calculations and the effectiveness of the analytical model, slight adjustments are made to the analytical procedure, which is termed here the corrected analytical plane wave model. Finally, the effects of the immersion ratio (h/d) and the relative length (w/d) of the obstacle on the reflection and transmission coefficients are computed using the three methods, and discussed for several wave and structural conditions.

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Section: Reflection and Transmission Coefficients Analysismentioning

confidence: 99%

Section: Reflection and Transmission Coefficients Analysismentioning

confidence: 99%

Analytical and Numerical Investigations Applied to Study the Reflections and Transmissions of a Rectangular Breakwater Placed at the Bottom of a Wave Tank

et al. 2021

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“…In the numerical simulations using the EFEM, Zhao et al 23 noted the increase in wave energy dissipation when bar heights are increased and also when numerous submerged porous bars are placed in front of a vertical wall. Senouci et al 24 studied the performance of dual breakwaters in comparison with single breakwaters for rectangular and trapezoidal shapes using an improvised version of the singular boundary element (meshless) method. The dual prismatic breakwaters are found to perform better than single breakwater and the trapezoidal breakwaters are found to present a wide spectrum of reflections, suggesting that the trapezoidal breakwaters function better than the rectangular breakwaters.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic performance of submerged breakwater in tandem with thin-walled as submerged reef structure

Patil

Karmakar

2022

Proceedings of the Institution of Mechanical Engineers, Part M:

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The interaction of gravity waves with submerged tandem breakwater of different structural configurations is analysed in finite water depth using the Multi-Domain Boundary Element Method (MDBEM). The wave transformation characteristics, wave forces and wave energy dissipation are analysed considering the presence of impermeable type thin-walled as reef structure in front of the primary submerged breakwater. The comparative study is performed for the submerged structures of various shapes (trapezoidal, triangular, rectangular and thin-walled) and types (rubble mound, permeable, impermeable) that are designed to function together as a tandem breakwater. The effect of varying angle of incidence, relative submergence depth, and relative gap between the reef structure and primary breakwater on wave reflection and transmission are derived for the suggested tandem breakwater models. Among all the impermeable-type models, the thin-walled as reef structure designed at a distance in front of thin-walled as a primary submerged breakwater as a tandem is observed to perform efficiently in terms of energy dissipation and also offers an optimum wave transmission for both short and long wave conditions. Further, the permeable and rubble mound type trapezoidal tandem breakwater offers higher energy dissipation in comparison with all other breakwaters. In view of the design considerations and structural stability of submerged breakwaters, the addition of a reef structure acts as a defence system for the primary breakwater and also creates an energy dissipation zone that allows the shore dynamics to be preserved, making tandem models more effective in the harbour region.

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“…The Bragg reflections for a train of surface water waves from a succession of impermeable submerged bottom breakwaters were studied by Ouyang [14] using a computational solution based on the Regularized Meshless Method (RMM). Senouci [15] proposed a meshless Singular Boundary Method (ISBM) for assessing the hydrodynamic performance of bottom-standing submerged breakwaters in regular waves. Recently, Loukili [16] presented a theoretical approach to study the effect of immersion ratios and the relative lengths of submerged rectangular breakwaters.…”

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confidence: 99%

Wave - Structure Interactions: A Literature Review

Loukili

Kotrasová

Dutykh

et al. 2022

Civil and Environmental Engineering

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The purpose of the work is revolved around presenting a literature review applied to wave-structure interactions. During this literature review, three types of breakwaters are presented: Bottom submerged breakwater, submerged plate, and seawalls breakwaters. Further, a numerical method used recently to study wave-structure interactions is presented. Furthermore, a simple analytical model is illustrated. Next, an experimental technique then also is depicted. For more details, this review will focus clearly on submerged bottom breakwater in discussion section for the reason of the importance of this breakwater for many hydrodynamic applications. Finally, valuable remarks will be deducted in the conclusion section.

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Performance Evaluation of Bottom-Standing Submerged Breakwaters in Regular Waves Using the Meshless Singular Boundary Method

Cited by 9 publications

References 21 publications

Analytical and Numerical Investigations Applied to Study the Reflections and Transmissions of a Rectangular Breakwater Placed at the Bottom of a Wave Tank

Analytical and Numerical Investigations Applied to Study the Reflections and Transmissions of a Rectangular Breakwater Placed at the Bottom of a Wave Tank

Hydrodynamic performance of submerged breakwater in tandem with thin-walled as submerged reef structure

Wave - Structure Interactions: A Literature Review

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