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Citation:
　Yamina Bakhti,Nadji Chioukh,Benameur Hamoudi,et al.A Multi-Domain Boundary Element Method to Analyze the Reflection and Transmission of Oblique Waves From Double Porous Thin Walls[J].Journal of Marine Science and Application,2017,(3):276-285.[doi:10.1007/s11804-017-1421-y]
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A Multi-Domain Boundary Element Method to Analyze the Reflection and Transmission of Oblique Waves From Double Porous Thin Walls

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Title:
A Multi-Domain Boundary Element Method to Analyze the Reflection and Transmission of Oblique Waves From Double Porous Thin Walls
Author(s):
Yamina Bakhti1;  Nadji Chioukh1; 2;  Benameur Hamoudi1;  Mohamed Boukhari1
Affilations:
Author(s):
Yamina Bakhti1;  Nadji Chioukh1; 2;  Benameur Hamoudi1;  Mohamed Boukhari1
1. Department of Maritime Engineering, University of Science and Technology MB, Oran 31000, Algeria;
2. Department of Civil Engineering, University of Djillali Liabes, Sidi Bél-Abbés 22000, Algeria
Keywords:
oblique waves; porous breakwater; perforated thin walls; boundary element method; reflection; transmission; wave energy dissipation
分类号:
-
DOI:
10.1007/s11804-017-1421-y
Abstract:
In the present paper, we examine the performance of an efficient type of wave-absorbing porous marine structure under the attack of regular oblique waves by using a Multi-Domain Boundary Element Method (MDBEM). The structure consists of two perforated vertical thin barriers creating what can be called a wave absorbing chamber system. The barriers are surface piercing, thereby eliminating wave overtopping. The problem of the interaction of obliquely incident linear waves upon a pair of perforated barriers is first formulated in the context of linear diffraction theory. The resulting boundary integral equation, which is matched with far-field solutions presented in terms of analytical series with unknown coefficients, as well as the appropriate boundary conditions at the free surface, seabed, and barriers, is then solved numerically using MDBEM. Dissipation of the wave energy due to the presence of the perforated barriers is represented by a simple yet effective relation in terms of the porosity parameter appropriate for thin perforated walls. The results are presented in terms of reflection and transmission coefficients. The effects of the incident wave angles, relative water depths, porosities, depths of the walls, and other major parameters of interest are explored.

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Memo

Memo:
Received date: 2016-11-25;Accepted date:2017-04-11。
Corresponding author:Benameur Hamoudi,hamoudi_benameur@yahoo.fr
Last Update: 2017-08-31