The hydrodynamic interactions of an array of truncated circular cylinders as each cylinder oscillates independently with different prescribed modes |
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Authors: | ZENG Xiao-hui TANG Si-yi |
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Affiliation: | Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China |
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Abstract: | An analytical method based on the eigenfunction expansion and the Graf's addition theorem for Bessel functions is developed to study the hydrodynamic interactions of an array of truncated circular cylinders with each cylinder oscillating independently in different prescribed modes. The hydrodynamic radiation and diffraction of linear waves by such an array of cylinders are investigated and the analytical solutions of the velocity potentials are obtained. After comparisons for degenerated cases and program verifications, several cases for an array of truncated cylinders with each cylinder oscillating independently in surge, sway, heave, roll, and pitch modes with different prescribed amplitudes, are studied and the hydrodynamic forces and moments acting on the cylinders are obtained. |
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Keywords: | array of truncated circular cylinders independent oscillation radiation hydrodynamic interaction |
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