Semi-analytical solution for the water wave diffraction by arrays of truncated circular cylinders in front of a vertical wall

Chatjigeorgiou, Ioannis K.

doi:10.1016/j.apor.2019.04.023

Cited by 22 publications

(2 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Wave power could be exploited either nearshore or offshore environments. The efficiency of WECs arrays and absorbed wave power could be further improved replacing WECs arrays in front of the marine structures (e.g., a vertical wall) (Kara 2022a, 2021, Chatjigeorgiou 2019 or integrating them with breakwaters. The overall cost WECs arrays in the offshore environment increases considerably due to the cost of the maintenance, installations, and operations.…”

Section: Introductionmentioning

confidence: 99%

Enhancements of Wave Power Absorption with Arrays and a Vertical Breakwater

Kara

2024

Preprint

View full text Add to dashboard Cite

The capability of in-house transient wave-multibody computational tool of ITU-WAVE are extended to predict the wave power absorption with Wave Energy Converters (WECs) arrays placed in front of a vertical breakwater. The analyses of hydrodynamic exciting and radiation forces are approximated solving boundary integral equation at each time interval. The reflection of incoming waves due to a vertical wall is predicted with method of images. The constructive or destructive performance of WECs arrays with different array configurations is measured with mean interaction factor. The behaviour of the exciting and radiation hydrodynamic forces of each WEC due to a vertical wall effect shows considerable differences than those of WECs arrays without a vertical wall influence. When the wave power absorption with WECs arrays with and without a vertical wall effect are compared, it is shown with numerical experiences that WECs placed in front of a vertical wall have much greater effects on wave power absorption. This can be attribute to the hydrodynamic interaction, standing waves, and nearly trapped waves in the gap between a vertical wall and WECs arrays. The analytical and other numerical results are used to for the validation of the numerical results of the present ITU-WAVE computational tool for exciting and radiation forces, and mean interaction factor of WECs arrays which show satisfactory agreements.

show abstract

Section: Introductionmentioning

confidence: 99%

Enhancements of Wave Power Absorption with Arrays and a Vertical Breakwater

Kara

2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Zheng and Zhang [21,27] solved the diffraction and radiation problems for near-wall truncated cylinders and provided a theoretical solution. Recently, Chatjigeorgiou [28] addressed the issue of water wave diffraction by a cylindrical array in front of a vertical wall. Konispoliatis et al [29] investigated the phenomenon of regular waves interacting with cylindrical arrays in front of infinite-length and finite-length vertical breakwaters.…”

Section: Introductionmentioning

confidence: 99%

Analytical Solution for Wave Diffraction by a Concentric Three-Cylinder System near a Vertical Wall

Zhai

Xia

et al. 2021

Mathematics

View full text Add to dashboard Cite

In this study, a semi-analytical model was developed to study wave diffraction around a concentric three-cylinder system near a wall based on linear potential theory. As a critical element, the target problem is transformed into bidirectional incident wave diffraction around two concentric structures based on the image principle and an analytical solution is obtained through eigenfunction expansion combined with a matching technique and Graf’s addition theorem. The validity of the proposed model was verified by comparing its results to known values. Parametric studies on porosity, annular spacing, incident angle, space between the structure and wall, and water depth were performed. The hydrodynamic loads and free-surface elevations in the system were calculated and compared to those reported in existing works on impermeable and permeable cylinders near a wall. The results indicate that the wave loads and run-ups on the exterior cylinder increase significantly based on the existence of the wall. However, based on the presence of an exterior porous protective structure, a significantly reduced influence of the wall on the interior cylinder can be observed. Considering the widespread use of concentric circular structures in ocean engineering, it is essential to conduct study on the hydrodynamic performance of concentric systems near walls, which can provide useful information for the design of marine structures.

show abstract

Analysis of water wave interaction with multiple submerged porous reef balls

Sun

Liu

et al. 2021

J Eng Math

View full text Add to dashboard Cite

Semi-analytical solution for the water wave diffraction by arrays of truncated circular cylinders in front of a vertical wall

Cited by 22 publications

References 34 publications

Enhancements of Wave Power Absorption with Arrays and a Vertical Breakwater

Enhancements of Wave Power Absorption with Arrays and a Vertical Breakwater

Analytical Solution for Wave Diffraction by a Concentric Three-Cylinder System near a Vertical Wall

Analysis of water wave interaction with multiple submerged porous reef balls

Contact Info

Product

Resources

About