Added mass and damping of a vertical cylinder in finite-depth waters |
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| Authors: | Ronald W Yeung |
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| Institution: | Department of Ocean Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA |
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| Abstract: | A comprehensive set of theoretical added masses and wave damping data for a floating circular cylinder in finite-depth water is presented. The hydrodynamic problem is solved by matching eigen functions of the interior and exterior problems. The resulting infinite system is solved directly and found to have excellent truncation characteristics. Added mass and damping are given for heave, sway, and roll motion, as well as coupling coefficients for sway and roll. It is shown that the heave added mass is logarithmic singular and the damping approaches a constant in the low-frequency limit. Transition of the behaviour in finite-depth water to deep water is also discussed. |
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