대한조선학회지 (Bulletin of the Society of Naval Architects of Korea)
- 제23권2호
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- Pages.21-26
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- 1986
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- 1225-1178(pISSN)
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- 2765-2858(eISSN)
천수역에 놓인 2차원 주상체에 수평방향으로 작용하는 동유체력에 관한 고찰
Hydrodynamic Forces on a Two-dimensional Cylinder in Shallow Water
초록
An analysis is made of hydrodynamic forces acting horizontally on a two-dimensional cylinder, when it is exposed to incident waves and consequently undergoes a swaying motion in shallow water. Applying the method of matched asymptotic expansions the added mass, wave damping and the wave exciting force are obtained in terms of the difference in potential across the cylinder in a simple manner. The potential jump is related to the so-called blockage coefficient which is determined purely from geometry. It is found that the wave damping coefficient can not exceed the blockage coefficient.
키워드