Determination of the Ship Motion Amplitudes in Shallow Water by Means of the Three-Dimensional Theory
Abstract
This paper describes the solution of the problem of the ship motions in regular waves in shallow water by means of the three-dimensional source technique. The unknown velocity potentials are represented with the help of the Green function of three-dimensional pulsating source. Results of the computations of surge, sway, heave, roll, pitch and yaw amplitudes for different depth parameter h/T are presented. Finally, the considerable influence of the shallow water effect on the amplitudes of different motion modes is graphically illustrated and discussed.
About the Authors
V. U. Semenova
Санкт-Петербургский государственный морской технический университет
Russian Federation
Russian Federation
Aung Than Htun
Санкт-Петербургский государственный морской технический университет
Russian Federation
Russian Federation
References
1. Басин А.М., Веледницкий И.О., Ляховицкий А.Г. Гидродинамика судов на мелководье. Л.: Судостроение, 1976.
2. Yu Y.S., Ursell F. Surface waves generated by an oscillating circular cylinder on water of finite depth; theory and experiment // J. of Fluid Mech., 1961. V.2. P.529-549.
3. Takaki, M. On the hydrodynamic forces and moments as acting on the two-dimensional bodies oscillating in shallow water // Res.Inst. of Appl.Mech., Kyushu University, Japan. V.25. No78. 1977.
4. Коханов Э.В. О расчетах гидродинамических характеристик качки контуров на мелководье // Сб. Судостроение и судоремонт. Москва. 1977. Вып.YIII.
5. Элис Я.М. Гидродинамические давления, присоединенные массы и коэффициенты демпфирования при качке судна с креном на мелководье // Сб. Судостроение и морские сооружения. Харьков. 1968. Вып.9.
6. Oortmerssen G. The motions of a ship in shallow water // Ocean Engineering. 1976. V.3. No4.
7. Papanikolaou D. A Three-dimensional Panel Method for Motions and Loads of Ships with Forward Speed. Schiffstechnik, B.39, H.4, 1992.
8. Wehausen J.V., Laitone E.V. Surface waves // Encyclopedia of Physics. Berlin, Springer-Verlag. 1960. V.9. P.446-778.
Review
For citations:
Semenova V.U., Than Htun A. Determination of the Ship Motion Amplitudes in Shallow Water by Means of the Three-Dimensional Theory. Fundamental and Applied Hydrophysics. 2010;(2):4-13. (In Russ.)
Views:
63
Email this article 