Krylov et al Ocean Eng 2010 - postprint.pdf (937.85 kB)

Wave-like aquatic propulsion of mono-hull marine vessels

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journal contribution
posted on 30.10.2012 by Victor V. Krylov, E. Porteous
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.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Citation

KRYLOV, V.V. and PORTEOUS, E., 2010. Wave-like aquatic propulsion of mono-hull marine vessels. Ocean Engineering, 37 (4), pp.378-386.

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publication date

2010

Notes

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

ISSN

0029-8018

Language

en

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