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Title: Wave-like aquatic propulsion of mono-hull marine vessels
Authors: Krylov, Victor V.
Porteous, E.
Keywords: Localised flexural waves
Generated thrust
Propulsion efficiency
Wave-like aquatic propulsion
Issue Date: 2010
Publisher: © Elsevier
Citation: KRYLOV, V.V. and PORTEOUS, E., 2010. Wave-like aquatic propulsion of mono-hull marine vessels. Ocean Engineering, 37 (4), pp.378-386.
Abstract: The present paper describes the results of the experimental investigation of a small-scale mono-hull model boat propelled by a localised flexural wave propagating along the plate of finite width forming the boat’s keel. Forward propulsion of the boat was achieved through flexural wave propagation in the opposite direction, which is similar to the aquatic propulsion used in nature by stingrays. The model boat under consideration underwent a series of tests both in a Perspex water tank and in the experimental pool. In particular, the forward velocity of the boat has been measured for different frequencies and amplitudes of the flexural wave. The highest velocity achieved was 32 cm/s. The thrust and propulsive efficiency have been measured as well. The obtained value of the propulsive efficiency in the optimum regime was 51%. This indicates that efficiency of this type of aquatic propulsion is comparable to that of dolphins and sharks (around 75%) and to that of a traditional propeller (around 70%). In contrast to a propeller though, the wave-like aquatic propulsion has the following advantages: it does not generate underwater noise and it is safe for people and marine animals.
Description: This is the author’s version of a work that was accepted for publication in the journal, Ocean Engineering. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published at: http://dx.doi.org/10.1016/j.oceaneng.2009.12.008
Version: Accepted for publication
DOI: 10.1016/j.oceaneng.2009.12.008
URI: https://dspace.lboro.ac.uk/2134/10791
Publisher Link: http://dx.doi.org/10.1016/j.oceaneng.2009.12.008
ISSN: 0029-8018
Appears in Collections:Published Articles (Aeronautical and Automotive Engineering)

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