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Effects of wave directionality on the in-line loading of a vertical cylinder

Chaplin, John R., Subbiah, Kesavan and Irani, Mehernosh (1994) Effects of wave directionality on the in-line loading of a vertical cylinder International Journal of Offshore and Polar Engineering, 4, (3), pp. 206-211.

Record type: Article

Abstract

This paper presents results from an experimental investigation into the loading on a rigid vertical circular cylinder in irregular unidirectional and multidirectional waves in water of uniform depth. The ambient flow at the location of the cylinder was measured directly using perforated-ball velocity meters (PVMs), in order to avoid uncertainties associated with the use of wave theories.
Reynolds numbers were in the range of 104 to 7 X 104, and Keulegan-Carpenter numbers ranged from o to 16. In-line Morison coefficients and root-mean-square force coefficients are estimated from the loading measured on force sleeves at three elevations along the length of the cylinder. Results are presented for the probability distributions of forces and peak forces, and for Morison and rms force coefficients. Effects of wave directionality are compared with Dean's analytical predictions.

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Published date: September 1994

Identifiers

Local EPrints ID: 75360
URI: http://eprints.soton.ac.uk/id/eprint/75360
ISSN: 1053-5381
PURE UUID: 79a23710-747c-43be-8240-3215e141f01a

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:43

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Contributors

Author: John R. Chaplin
Author: Kesavan Subbiah
Author: Mehernosh Irani

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