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Numerical and experimental studies of wave impact forces on vertical cylinder in wave basin
- Authors
- Shin, Y.S.; Jo, C.H.; Hong, K.Y.; Cho, W.C.
- Issue Date
- 2007
- Keywords
- Breaking wave; Impact force; Multiblock grid; N.S. equation; Numerical wave basin
- Citation
- Proceedings of the International Offshore and Polar Engineering Conference, pp 3637 - 3641
- Pages
- 5
- Journal Title
- Proceedings of the International Offshore and Polar Engineering Conference
- Start Page
- 3637
- End Page
- 3641
- ISSN
- 1098-6189
- Abstract
- Impact forces of highly nonlinear waves are one of the important factors in ocean structure design. However, they are difficult to estimate due to the complex interaction behavior. In this study, the numerical program based on N.S. equations is developed to investigate impact forces of steep waves generated by a numerical wave maker. The complex geometry of interaction is modeled by multi-block grid. The numerical simulation has been carried out by varying time step and grid size. The numerical results show much less values than experiment. From the analysis, it is concluded that impact forces vary quite severely regardless of wave breaking. Copyright ？ 2007 by The International Society of Offshore and Polar Engineers(ISOPE).
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