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CCP-WSI Blind Test using qaleFOAM with an improved passive wave absorber

Yan, Shiqiang, Wang, Jinghua, Wang, Junxian, Ma, Qingwei and Xie, Zhihua 2020. CCP-WSI Blind Test using qaleFOAM with an improved passive wave absorber. International Journal of Offshore and Polar Engineering 30 (1) , pp. 43-52. 10.17736/ijope.2020.jc781

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Abstract

The paper presents the contribution to the CCP-WSI Blind Test, in which the responses of wave energy converterssubjected to extreme waves are considered, by a hybrid model, qaleFOAM, coupling a two-phase Navier–Stokes (NS) modeland the fully nonlinear potential theory (FNPT) using the spatially hierarchical approach. The former governs a limitedcomputational domain (NS domain) around the structures and is solved by the OpenFOAM/InterDyMFoam. The lattercovers the rest of the domain (FNPT domain) and is solved by using the quasi Lagrangian-Eulerian finite element method.Two numerical techniques have been developed to tackle the challenges and maximizing the computational efficiency ofthe qaleFOAM, including a modified solver for the six-degree-of-freedom motions of rigid bodies in the NS model and animproved passive wave absorber imposed at the outlet of the NS domain. With these developments, the accuracy and thecomputational efficiency of the qaleFOAM are analyzed for the cases considered in the blind test.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Advanced Research Computing @ Cardiff (ARCCA)
Publisher: International Society of Offshore and Polar
ISSN: 1053-5381
Funders: EPSRC
Last Modified: 25 Jun 2020 19:37
URI: http://orca.cf.ac.uk/id/eprint/130068

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