Xie, Zhihua  ORCID: https://orcid.org/0000-0002-5180-8427, Stoesser, Thorsten, Yan, Shiqiang, Ma, Qingwei and Lin, Pengzhi
2020.
A Cartesian cut-cell based multiphase flow model for large-eddy simulation of three-dimensional wave-structure interaction.
Computers and Fluids
213
, 104747.
10.1016/j.compfluid.2020.104747
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Abstract
A two-phase flow numerical approach for performing large-eddy simulations of three-dimensional (3D) wave-structure interaction is presented in this study. The approach combines a volume-of-fluid method to capture the air-water interface and a Cartesian cut-cell method to deal with complex geometries. The filtered Navier–Stokes equations are discretised by the finite volume method with the PISO algorithm for velocity-pressure coupling and the dynamic Smagorinsky subgrid-scale model is used to compute the unresolved (subgrid) scales of turbulence. The versatility and robustness of the presented numerical approach is illustrated by applying it to solve various three-dimensional wave-structure interaction problems featuring complex geometries, such as a 3D travelling wave in a closed channel, a 3D solitary wave interacting with a vertical circular cylinder, a 3D solitary wave interacting with a horizontal thin plate, and a 3D focusing wave impacting on an FPSO-like structure. For all cases, convincing agreement between the numerical predictions and the corresponding experimental data and/or analytical or numerical solutions is obtained. In addition, for all cases, water surface profiles and turbulent vortical structures are presented and discussed.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Professional Services > Advanced Research Computing @ Cardiff (ARCCA) Schools > Engineering |
| Publisher: | Elsevier |
| ISSN: | 0045-7930 |
| Funders: | EPSRC, Royal Society |
| Date of First Compliant Deposit: | 8 October 2020 |
| Date of Acceptance: | 25 September 2020 |
| Last Modified: | 01 Aug 2024 13:54 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/135374 |
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