Back to Search
Start Over
A numerical model for simulating the interaction of dam-break waves and floating structures.
- Source :
-
Ocean Engineering . Oct2023:Part 2, Vol. 285, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- Using OpenFOAM, a numerical model is proposed to simulate the interaction of dam-break waves and floating structures. A geometric volume-of-fluid (VOF) method (isoAdvector) is combined with overset grid techniques. To avoid undesired air bubbles appearing in bulk water regions, a source term is introduced to the VOF equation. Attempts are made to alleviate mass conservation defects of the overset grid. It is found that: (i) Among the mesh interpolation schemes considered, the kernel scheme is the most preferable because it reaches a better balance between accuracy and efficiency; (ii) Extending donor cell stencils is not recommended because it magnifies the mass conservation defect of the overset grid; (iii) A strong coupling strategy is recommended because it alleviates the "water leak" phenomenon. Then, to validate the numerical model, two cases are simulated. The first case is a three-dimensional floating body case. The result demonstrates that this model performs better in terms of mass conservation than the model proposed by Wang et al. (2021). The second case is a two-dimensional experiment of the interaction of a dam-break wave and a floating box. The result demonstrates that this model has better temporal and spatial convergence than the default overset grid solver in OpenFOAM. • The problem of undesired air bubbles appearing in bulk water regions are resolved. • The kernel interpolation scheme makes a better trade-off between accuracy and efficiency. • The mass non-conservation defect of overset grid techniques is significantly alleviated. • Present model performs better than the default OpenFOAM solver under tested conditions. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00298018
- Volume :
- 285
- Database :
- Academic Search Index
- Journal :
- Ocean Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 171880664
- Full Text :
- https://doi.org/10.1016/j.oceaneng.2023.115469