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Numerical Study on Floating-Body Motions in Finite Depth
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 Title & Authors
Numerical Study on Floating-Body Motions in Finite Depth
Kim, Tae-Young; Kim, Yong-Hwan;
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Installing floating structures in a coastal area requires careful observation of the finite-depth effect. In this paper, a Rankine panel method that includes the finite-depth effect is developed in the time domain. The bottom boundary condition is satisfied by directly distributing Rankine panels on the bottom surface. A stepwise analysis is performed for the radiation diffraction problems and consequently freely-floating motion responses over different water depths. The hydrodynamic properties of two test hulls, a Series 60 and a floating barge, are compared to the results from another computation program for validation purposes. The results for both hulls change remarkably as the water depth becomes shallower. The important features of the results are addressed and the effects of a finite depth are discussed.
Finite-depth effect;Rankine panel method;Time-domain analysis;Floating body;
 Cited by
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Tuck, E.O., Ship motions in shallow water, J. of Ship Research, 14 (4) (1970), 317-328.

Tasai, F., Takagi, M. and Ohkusu, M., Ship motions in restricted waters, Reports of Research Institute for Applied Mechanics, Kyushu University 26 (81) (1978).

Andersen, P., Ship Motions and Sea Loads in Restricted Water Depth, Ocean Engineering, 6 (6) (1979), 557-569. crossref(new window)

Perunovic, J.V. and Jensen, J.J., Wave loads on ships sailing in restricted water depth, Marine Structures, 16 (6) (2003), 469-485. crossref(new window)

Kim, Y., Computation of Higher-Order Hydrodynamic Forces on Ships and Offshore Structures in Waves, Ph.D. Thesis, MIT (1999).

Oortmerssen, G.V., The motions of a ship in shallow water, Ocean Engineering, 3 (4) (1976), 221-255. crossref(new window)

Lee, C.H., WAMIT Theory Manual, MIT Report 95-2, MIT (1995).

Grant, R. and Holboke M., Shallow water effects on low-frequency wave excitation of moored ships. Offshore Technology Conference (OTC2004), Houston, USA, May 3-6, (2004).

Naciri, M., Design aspects of SPM LNG terminals in shallow water. Offshore Technology Conference (OTC2004), Houston, USA, May 3-6, (2004).

Zou, J., Global dynamic responses of FPSOs in shallow waters. 16th International Offshore and Polar Engineering Conference (ISOPE2006), San Francisco, USA, May 28-June 2, (2006).

Clauss, G., Stempinski, F., Dudek, M., and Klein, M., Water depth influence on wavestructure- interaction, Ocean Engineering, 36 (17-18) (2009), 1396-1403. crossref(new window)

Fonseca, N., Pessoa, J., Mavrakos, S. and Boulluec, M.L., Experimental and numerical investigation of the slowly varying wave exciting drift forces on a restrained body in bichromatic waves, Ocean Engineering, 38 (17-18) (2011), 2000-2014. crossref(new window)

Nakos, D.E., Stability of transient gravity waves on a discrete free surface, MIT Report, MIT (1993).