Numerical simulations of wave sheltering in coastal waters with submerged tensioned viscoelastic sheets using smoothed particle hydrodynamics
The installation of submerged tensioned viscoelastic sheets in both vertical and horizontal configurations has been proposed as a soft measure for wave sheltering in coastal waters. In this study, we develop a novel numerical scheme to model wave sheltering performance of the tensioned viscoelastic...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/176067 |
| _version_ | 1811690899092013056 |
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| author | Liu, Xiaodong Law, Adrian Wing-Keung Sree, Dharma K. K. Bi, Cheng |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Liu, Xiaodong Law, Adrian Wing-Keung Sree, Dharma K. K. Bi, Cheng |
| author_sort | Liu, Xiaodong |
| collection | NTU |
| description | The installation of submerged tensioned viscoelastic sheets in both vertical and horizontal configurations has been proposed as a soft measure for wave sheltering in coastal waters. In this study, we develop a novel numerical scheme to model wave sheltering performance of the tensioned viscoelastic sheet using Smoothed Particle Hydrodynamics (SPH) by discretising the sheet into finite rigid sections interconnected through rotational hinges, with each rotational hinge being assigned with appropriate torsional stiffness and damping to emulate the viscoelastic behaviour of the sheet. Furthermore, a spring hinge is added to the two ends of the sheet to represent the stretching deformation and pre-tensioning. The SPH approach is validated against the experimental measurements on wave interactions with vertical tensioned viscoelastic sheets by Bi (2022) and horizontal tensioned viscoelastic sheets by Sree et al. (2021). The simulation results reasonably predict the sheet displacement under wave action in both experiments with varying sheet property, wave period and pre-tension. The wave sheltering performance in both experiments is also predicted satisfactorily. Nevertheless, for the horizontal viscoelastic sheet, the SPH simulations underestimate the sheet displacement with deep submergence and are also unable to generate the nonlinear high-frequency wave components with shallow submergence due to inherent limitations of the current SPH model. |
| first_indexed | 2024-10-01T06:11:19Z |
| format | Journal Article |
| id | ntu-10356/176067 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:11:19Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1760672024-05-13T05:02:53Z Numerical simulations of wave sheltering in coastal waters with submerged tensioned viscoelastic sheets using smoothed particle hydrodynamics Liu, Xiaodong Law, Adrian Wing-Keung Sree, Dharma K. K. Bi, Cheng School of Civil and Environmental Engineering Nanyang Environment and Water Research Institute Engineering Wave sheltering Tensioned viscoelastic sheets The installation of submerged tensioned viscoelastic sheets in both vertical and horizontal configurations has been proposed as a soft measure for wave sheltering in coastal waters. In this study, we develop a novel numerical scheme to model wave sheltering performance of the tensioned viscoelastic sheet using Smoothed Particle Hydrodynamics (SPH) by discretising the sheet into finite rigid sections interconnected through rotational hinges, with each rotational hinge being assigned with appropriate torsional stiffness and damping to emulate the viscoelastic behaviour of the sheet. Furthermore, a spring hinge is added to the two ends of the sheet to represent the stretching deformation and pre-tensioning. The SPH approach is validated against the experimental measurements on wave interactions with vertical tensioned viscoelastic sheets by Bi (2022) and horizontal tensioned viscoelastic sheets by Sree et al. (2021). The simulation results reasonably predict the sheet displacement under wave action in both experiments with varying sheet property, wave period and pre-tension. The wave sheltering performance in both experiments is also predicted satisfactorily. Nevertheless, for the horizontal viscoelastic sheet, the SPH simulations underestimate the sheet displacement with deep submergence and are also unable to generate the nonlinear high-frequency wave components with shallow submergence due to inherent limitations of the current SPH model. National Research Foundation (NRF) Public Utilities Board (PUB) This research study is supported by the National Research Foundation, Singapore, and PUB, Singapore’s National Water Agency under its RIE2025 Urban Solutions and Sustainability (USS) (Water) Centre of Excellence (CoE) Programme, awarded to Nanyang Environment & Water Research Institute (NEWRI), Nanyang Technological University, Singapore (NTU). 2024-05-13T05:02:53Z 2024-05-13T05:02:53Z 2024 Journal Article Liu, X., Law, A. W., Sree, D. K. K. & Bi, C. (2024). Numerical simulations of wave sheltering in coastal waters with submerged tensioned viscoelastic sheets using smoothed particle hydrodynamics. Ocean Engineering, 296, 116912-. https://dx.doi.org/10.1016/j.oceaneng.2024.116912 0029-8018 https://hdl.handle.net/10356/176067 10.1016/j.oceaneng.2024.116912 2-s2.0-85184595708 296 116912 en Ocean Engineering © 2024 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering Wave sheltering Tensioned viscoelastic sheets Liu, Xiaodong Law, Adrian Wing-Keung Sree, Dharma K. K. Bi, Cheng Numerical simulations of wave sheltering in coastal waters with submerged tensioned viscoelastic sheets using smoothed particle hydrodynamics |
| title | Numerical simulations of wave sheltering in coastal waters with submerged tensioned viscoelastic sheets using smoothed particle hydrodynamics |
| title_full | Numerical simulations of wave sheltering in coastal waters with submerged tensioned viscoelastic sheets using smoothed particle hydrodynamics |
| title_fullStr | Numerical simulations of wave sheltering in coastal waters with submerged tensioned viscoelastic sheets using smoothed particle hydrodynamics |
| title_full_unstemmed | Numerical simulations of wave sheltering in coastal waters with submerged tensioned viscoelastic sheets using smoothed particle hydrodynamics |
| title_short | Numerical simulations of wave sheltering in coastal waters with submerged tensioned viscoelastic sheets using smoothed particle hydrodynamics |
| title_sort | numerical simulations of wave sheltering in coastal waters with submerged tensioned viscoelastic sheets using smoothed particle hydrodynamics |
| topic | Engineering Wave sheltering Tensioned viscoelastic sheets |
| url | https://hdl.handle.net/10356/176067 |
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