A Novel Experimental Approach to the Aerodynamic Testing of Wind Assisted Ship and Yacht Sails


Highly cambered profiles yield powerful wind-assisted ship wings and yacht sails. However, their complex aerodynamics governed by flow separation remains to be fully understood. Particle image velocimetry in water tunnels may lead to new breakthroughs, but limitations exist due to the necessary high spatial and temporal resolution. Force measurements and flow visualisation were undertaken on circular arcs and sails to ascertain the viability of this novel experimental approach. The results reveal that (i) a linear blockage correction can be devised; (ii) a blockage-independent critical Reynolds number and critical angle of attack exist; and (iii) a force crisis occurs because of the suppressed laminarization of the boundary layer downstream of the leading-edge separation bubble. Ultimately, water tunnel testing is demonstrated to be a pertinent experimental methodology. These findings provide novel insights into the experimental testing of wind-assisted ship and yacht sails, and may contribute to improving their performance by design.

Divisions: College of Engineering & Physical Sciences > School of Engineering and Technology > Mechanical, Biomedical & Design
College of Engineering & Physical Sciences > Engineering for Health
College of Engineering & Physical Sciences > Smart and Sustainable Manufacturing
Additional Information: This is the author's accepted manuscript of a paper presented at the International Conference on Postgraduate Research in Maritime Technology 2023.
Event Title: International Conference on Postgraduate Research in Maritime Technology 2023
Event Type: Other
Event Dates: 2023-11-29 - 2023-11-29
Last Modified: 12 Feb 2024 08:04
Date Deposited: 19 Dec 2023 10:39
PURE Output Type: Conference contribution
Published Date: 2023-11-29
Authors: Souppez, Jean-Baptiste R. G. (ORCID Profile 0000-0003-0217-5819)



Version: Published Version

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