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Wave Drift Forces Affected By Low-Frequency Oscillations
| Content Provider | Semantic Scholar |
|---|---|
| Author | Nihei, Yasunori Weiguang, Bao Kinoshita, Takeshi |
| Copyright Year | 2007 |
| Abstract | In the present work, the problem of interaction between the lowfrequency surge motion of a floating body and ambient wave fields is considered to investigate the effects of the slow oscillations on the nonlinear wave loads. It is assumed that the frequency of the slow surge motion is much smaller than the incident wave frequency. A bodyfixed frame following the low-frequency surge motion is adopted to describe the problem. Two small parameters, i.e. the incident wave amplitude and the low frequency, are used in the perturbation expansion to simplify the problem. So obtained boundary value problems for each order of potentials are solved by means of the hybrid method. The fluid domain is divided into two regions by a virtual circular cylinder around the body. The potential in the inner region is expressed by an integral over the boundary surface with a Rankin source as its Green function while it is expanded into a series of eigenfunctions in the outer region. As an extension of previous work, differential operators are suggested to solve the higher order potentials in the outer region efficiently. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://legacy.isope.org/publications/proceedings/ISOPE/ISOPE%202007/papers/I07JSC-546nihe.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
