Using a porous-media approach for CFD modelling of wave interaction with thin perforated structures
dc.contributor.author | Feichtner, A | |
dc.contributor.author | Mackay, E | |
dc.contributor.author | Tabor, G | |
dc.contributor.author | Thies, PR | |
dc.contributor.author | Johanning, L | |
dc.contributor.author | Ning, D | |
dc.date.accessioned | 2021-01-04T07:29:03Z | |
dc.date.issued | 2020-12-24 | |
dc.description.abstract | This work presents the use of a porous-media approach for computational fluid dynamics (CFD) modelling of wave interaction with thin perforated sheets and cylinders. The perforated structures are not resolved explicitly but represented by a volumetric porous zone where a volume-averaged pressure gradient in the form of a drag term is applied to the Navier–Stokes momentum equation. The horizontal force on the structures and the free-surface elevation at wave gauges around the cylinder model have been analysed for a range of porosities and regular wave conditions. The CFD results are verified against results from a linear potential-flow model and validated against experimental results. The applied pressure gradient formulation produces good agreement for all porosity values, wave frequencies and wave steepnesses investigated. It is demonstrated that an isotropic macroscopic porosity representation used for large volumetric granular material can also be used for thin perforated structures. This approach offers greater flexibility in the range of wave conditions that can be modelled compared to approaches based on linear potential-flow theory and requires a smaller computational effort compared to CFD approaches which resolve the flow through the openings. The approach can therefore be an efficient alternative for engineering problems where large-scale effects such as global forces and the overall flow-behaviour are of the main interest. | en_GB |
dc.description.sponsorship | University of Exeter | en_GB |
dc.description.sponsorship | Engineering and Physical Sciences Research Council (EPSRC) | en_GB |
dc.description.sponsorship | National Natural Science Foundation of China | en_GB |
dc.description.sponsorship | Newton Fund | en_GB |
dc.identifier.citation | Published online 24 December 2020 | en_GB |
dc.identifier.doi | 10.1007/s40722-020-00183-7 | |
dc.identifier.grantnumber | EP/R007519/1 | en_GB |
dc.identifier.grantnumber | 51761135011 | en_GB |
dc.identifier.grantnumber | 424495777 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/124273 | |
dc.language.iso | en | en_GB |
dc.publisher | Springer | en_GB |
dc.rights | © The Author(s) 2020. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. | en_GB |
dc.subject | CFD | en_GB |
dc.subject | OpenFOAM | en_GB |
dc.subject | Perforated sheet | en_GB |
dc.subject | Porous media | en_GB |
dc.subject | Slotted | en_GB |
dc.subject | Wave structure interaction | en_GB |
dc.title | Using a porous-media approach for CFD modelling of wave interaction with thin perforated structures | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2021-01-04T07:29:03Z | |
dc.identifier.issn | 2198-6444 | |
dc.description | This is the final version. Available on open access from Springer via the DOI in this record | en_GB |
dc.description | Availability of data and material: The research data supporting this publication are provided within this paper. | en_GB |
dc.identifier.journal | Journal of Ocean Engineering and Marine Energy | en_GB |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2020-12-01 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2020-12-24 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2020-12-28T11:05:12Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2021-01-04T07:29:09Z | |
refterms.panel | B | en_GB |
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Except where otherwise noted, this item's licence is described as © The Author(s) 2020. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.