Wave diffraction around a three-dimensional body in a current
- Univ. of Hawaii, Honolulu, HI (United States). Dept. of Ocean Engineering
- Korea Maritime Univ., Pusan (Korea, Republic of). Dept. of Ocean Civil Engineering
- Univ. of British Columbia, Vancouver, British Columbia (Canada). Dept. of Civil Engineering
The effects of a collinear current on the diffraction of regular waves around a three-dimensional surface-piercing body are examined. With the current speed assumed to be small, the boundary-value problem is separated into a steady current problem with a rigid wall condition applied at the still water level and a wave propagation problem in the resulting current field. The boundary conditions of the wave propagation problem are satisfied by a time-stepping procedure and the field solution is obtained by an integral equation method. Free surface profiles, runup and wave forces are described for a vertical circular cylinder in combined waves and a current. The current is shown to affect significantly the steady drift force and runup predictions. Comparisons of the computed wave forces are made with a previous numerical solution involving a semi-immersed sphere in deep water, and indicate good agreement.
- OSTI ID:
- 182717
- Report Number(s):
- CONF-950695--; ISBN 0-7918-1306-1
- Country of Publication:
- United States
- Language:
- English
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