Hydrodynamic forces acting on multiple floating cylinders in both waves and slow current
- Univ. of Tokyo (Japan). Inst. of Industrial Science
To estimate the hydrodynamic forces acting on ocean structures, the problem of inter-action among an assembly of cylinders. fixed in both waves and current is considered. The problem is linearized by a perturbation method based on the assumption of small current velocity and linear wave theory. The interaction among cylinders is represented by waves emitted from adjacent cylinders towards the cylinder under consideration. Different from previous works, the cylinders are not necessary to be mounted to the sea bottom. Therefore, the interaction between scattered evanescent waves and propagating waves has to be taken into account. The effect of steady disturbance potential is also included in the present work and a special treatment is suggested to deal with this effect. Hydrodynamic forces including the wave drift damping are evaluated by integrating the hydrodynamic pressure over the wetted surface of the cylinders. Some numerical examples are calculated and compared with existing results.
- OSTI ID:
- 55692
- Report Number(s):
- CONF-940230-; ISBN 0-7918-1264-2; TRN: IM9525%%373
- Resource Relation:
- Conference: 13. international conference on offshore mechanics and Arctic engineering (OMAE-13), Houston, TX (United States), 27 Feb - 3 Mar 1994; Other Information: PBD: 1994; Related Information: Is Part Of OMAE 1994. Volume 1: Offshore technology; Chakrabarti, S.K.; Morrison, D.; Williams, A.N.; Ertekin, R.C.; Maeda, Hisaaki; Pantazopoulos, M.S. [eds.]; PB: 492 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
The mean drift forces and yaw moment on multiple-cylinders in waves and current
On the low-frequency hydrodynamic damping forces acting on offshore moored vessels