Water-wave interaction with submerged porous elastic disks

Zheng, S.; Meylan, M. H.; Greaves, D.; Iglesias, Gregorio

Water-wave interaction with submerged porous elastic disks

dc.contributor.author	Zheng, S.
dc.contributor.author	Meylan, M. H.
dc.contributor.author	Greaves, D.
dc.contributor.author	Iglesias, Gregorio
dc.contributor.funder	European Commission	en
dc.contributor.funder	Tianjin University	en
dc.date.accessioned	2020-04-21T12:30:02Z
dc.date.available	2020-04-21T12:30:02Z
dc.date.issued	2020-04-17
dc.date.updated	2020-04-21T12:01:41Z
dc.description.abstract	Hydroelastic interaction between water waves and submerged porous elastic disks of negligible thickness in water of finite depth is investigated under the assumption of small amplitude water-wave motion and structural response. The disks are either simply supported or clamped at their edges. Wave power can be absorbed/dissipated by the disks due to their porosity. A theoretical model based on the linear potential flow theory and eigenfunction matching method is developed to solve the wave scattering problem of the submerged disks. An indirect method, employing Kochin functions, is derived based on Greenâ s theorem to evaluate the wave power absorption/dissipation, and it produces accurate results at a lower computational cost than the conventional method. This theoretical model is applied to perform a multi-parameter study on the performance of a single submerged porous elastic disk, and an array of disks as well, particularly, in terms of near-field wave motion, disk deflection, far-field scattering coefficient, and wave power absorption/dissipation. Deploying multiple disks in an array is found to be a more promising approach for wave power absorption/dissipation compared to enlarging the area of a single disk.	en
dc.description.sponsorship	European Commission (Intelligent Community Energy (ICE), INTERREG V FCE Contract No. 5025); State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University (Open Research Fund Program Grant No. HESS–1902)	en
dc.description.status	Peer reviewed	en
dc.description.version	Accepted Version	en
dc.format.mimetype	application/pdf	en
dc.identifier.articleid	047106	en
dc.identifier.citation	Zheng, S., Meylan, M. H., Greaves, D. and Iglesias, G. (2020) ‘Water-wave interaction with submerged porous elastic disks’, Physics of Fluids, 32(4), 047106 (20pp). doi: 10.1063/5.0006119	en
dc.identifier.doi	10.1063/5.0006119	en
dc.identifier.eissn	1089-7666
dc.identifier.endpage	20	en
dc.identifier.issn	1070-6631
dc.identifier.issued	4	en
dc.identifier.journaltitle	Physics of Fluids	en
dc.identifier.startpage	1	en
dc.identifier.uri	https://hdl.handle.net/10468/9843
dc.identifier.volume	32	en
dc.language.iso	en	en
dc.publisher	AIP Publishing	en
dc.relation.uri	https://aip.scitation.org/doi/10.1063/5.0006119
dc.rights	© 2020, the Authors. Published under license by AIP Publishing. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared as: Zheng, S., Meylan, M. H., Greaves, D. and Iglesias, G. (2020) ‘Water-wave interaction with submerged porous elastic disks’, Physics of Fluids, 32(4), 047106 (20pp), doi: 10.1063/5.0006119, and may be found at https://doi.org/10.1063/5.0006119	en
dc.subject	Hydroelastic interaction	en
dc.subject	Small amplitude water wave motion	en
dc.subject	Structural response	en
dc.subject	Elastic disks	en
dc.subject	Porosity	en
dc.subject	Eigenfunction	en
dc.subject	Kochin functions	en
dc.title	Water-wave interaction with submerged porous elastic disks	en
dc.type	Article (peer-reviewed)	en