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http://dx.doi.org/10.5574/KSOE.2016.30.3.151

Diffraction and Radiation of Waves by Array of Multiple Buoys  

Cho, Il-Hyoung (Department of Ocean System Engineering, Jeju National University)
Publication Information
Journal of Ocean Engineering and Technology / v.30, no.3, 2016 , pp. 151-160 More about this Journal
Abstract
The diffraction and radiation of linear waves by an array of truncated floating multiple buoys are solved using the interaction theory based on a matched eigenfunction expansion method (MEEM). The interaction processes between multiple buoys are very complex and numerous, because the scattered and radiated waves from each buoy affect the others in the array. Our primary aim is therefore to construct the rigorous wave exciting forces and hydrodynamic forces to deal with the problem of multiple interactions. This present method is applied to a square array of four buoys with two incidence angles, and the results are given for the wave excitation forces on each buoy, heave RAO for each buoy heaving independently, and wave elevations around the buoys and wave run-up. The analytical solutions are in good agreement with the numerical solutions obtained from commercial code (WAMIT).
Keywords
interaction theory; eigenfunction expansion method; multi-buoy; diffraction; radiation;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Linton, C.M., Evans, D.V., 1990. The Interaction of Waves with Arrays of Vertical Circular Cylinders. Journal of Fluid Mechanics, 215, 549-569.   DOI
2 Maniar, H.D., Newman, J.N., 1997. Wave Diffraction by a Long Array of Cylinders. Journal of Fluid Mechanics, 339, 309-330.   DOI
3 Murai, M., Kagemoto, H., Fujino, M., 1999. On the Hydroelastic Responses of a Very Large Floating Structure in Waves. Journal of Marine Science and Technology, 4, 123-153.   DOI
4 Siddorn, P., Taylor, R.E., 2008. Diffraction and Independent Radiation by an Array of Floating Cylinders. Ocean Engineering, 35(13), 1289-1303.   DOI
5 Tung, C.C., 1979. Hydrodynamic Forces on Submerged Vertical Circular Cylindrical Tanks under Ground Excitation. Applied Ocean Research, 1(2), 75-78.   DOI
6 Yilmaz, O., and Incecik, A., 1998. Analytical Solutions of the Diffraction Problem of a Group of Truncated Vertical Cylinders. Ocean Engineering, 25(6), 385-394.   DOI
7 Yilmaz, O., Incecik, A., Barltrop, N., 2001. Wave Enhancement Due to Blockage in Semi-submersible and TLP Structures. Ocean Engineering, 28(5), 471-490.   DOI
8 Cho, I.H., Kweon, H.M., 2011. Extraction of Wave Energy Using the Coupled Heaving Motion of a Circular Cylinder and Linear Electric Generator. Journal of Ocean Engineering and Technology, 25(6), 9-16.
9 Child, B.F.M., Venugopal, V., 2010. Optimal Configuration of Wave Energy Device Arrays. Ocean Engineering, 37 (6), 1402-1417.   DOI
10 Garrett, C.J.R., 1971. Wave Forces on a Circular Dock. Journal of Fluid Mechanics, 46, 129–139.   DOI
11 Kagemoto, H., Yue, D.K.P., 1986. Interactions among Multiple Three Dimensional Bodies in Water Waves: an Exact Algebraic Method. Journal of Fluid Mechanics, 166, 189-209.   DOI
12 Kim, M.H., 1993. Interaction of Waves with N-vertical Circular-cylinders. Journal of Waterway Port Coastal and Ocean Engineering, 119(6), 671-689.   DOI