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Determination of kite forces using three-dimensional flight trajectories for ship propulsion

Record type: Article

For application of kites to ships for power and propulsion, a scheme for predicting time averaged kite forces is required. This paper presents a method for parameterizing figure of eight shape kite trajectories and for predicting kite velocity, force and other performance characteristics. Results are presented for a variety of maneuver shapes, assuming realistic performance characteristics from an experimental test kite. Using a 300 m2 kite, with 300 m long flying lines in 6.18 ms?1 wind, a time averaged propulsive force of 16.7 tonne is achievable. A typical kite force polar is presented and a sensitivity study is carried out to identify the importance of various parameters in the ship kite propulsion system. Small horizontally orientated figure of eights shape kite trajectories centred on an elevation of 15° is preferred for maximizing propulsive benefit. Propulsive force is found to be highly sensitive to aspect ratio. Increasing aspect ratio from 4 to 5 is estimated to yield up to 15% more drive force

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Citation

Dadd, George M., Hudson, Dominic A. and Shenoi, R.A. (2011) Determination of kite forces using three-dimensional flight trajectories for ship propulsion Renewable Energy, 36, (10), pp. 2667-2678. (doi:10.1016/j.renene.2011.01.027).

More information

Published date: 21 April 2011
Keywords: kite dynamics, trajectories, ship propulsion, optimisation, experiment, reduced fuel consumption
Organisations: Engineering Science Unit, Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 183895
URI: http://eprints.soton.ac.uk/id/eprint/183895
ISSN: 0960-1481
PURE UUID: 32a63bfb-5b88-452b-bda2-e5fa14039803
ORCID for Dominic A. Hudson: ORCID iD orcid.org/0000-0002-2012-6255

Catalogue record

Date deposited: 04 May 2011 13:39
Last modified: 18 Jul 2017 11:54

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