Krylov et al Ocean Eng 2010 - postprint.pdf (937.85 kB)
Wave-like aquatic propulsion of mono-hull marine vessels
journal contribution
posted on 2012-10-30, 08:58 authored by Victor V. Krylov, E. PorteousThe 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
© ElsevierVersion
- AM (Accepted Manuscript)
Publication date
2010Notes
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.2009.12.008ISSN
0029-8018Publisher version
Language
- en