Wind tunnel tests on a 1/16th scale laser model
Wind tunnel tests on a 1/16th scale laser model
An analysis of full-scale wind structure relevant to sailing yachts is carried out in order to develop a target model for wind-tunnel simulations. Unavoidable differences between real onset yacht flows and idealised wind-tunnel simulations are pointed out. Detailed measurements of the actual wind-tunnel flows developed for the present tests are discussed in depth, and are compared to idealised cases, concluding that although the simulations are not as good as physically possible, they are perfectly adequate for the present test programme.
Measurements of the forces and moments acting on a 1/16th scale model of a laser yacht for apparent wind directions of 30 and 60 degrees, for heel angles of 0, 10, 20, and 30 degrees, and for smooth and turbulent sheared flow are presented. The results are discussed in terms of sail aerodynamics, and a transformation procedure is developed which leads to an excellent collapse of the measured results on the basis of calculated sail lift and drag coefficients.
University of Southampton
Flay, R.G.J.
dff9d36b-c27b-4971-9300-d17fc49b433d
1992
Flay, R.G.J.
dff9d36b-c27b-4971-9300-d17fc49b433d
Flay, R.G.J.
(1992)
Wind tunnel tests on a 1/16th scale laser model
(Ship Science Reports, 55)
Southampton, UK.
University of Southampton
126pp.
Record type:
Monograph
(Project Report)
Abstract
An analysis of full-scale wind structure relevant to sailing yachts is carried out in order to develop a target model for wind-tunnel simulations. Unavoidable differences between real onset yacht flows and idealised wind-tunnel simulations are pointed out. Detailed measurements of the actual wind-tunnel flows developed for the present tests are discussed in depth, and are compared to idealised cases, concluding that although the simulations are not as good as physically possible, they are perfectly adequate for the present test programme.
Measurements of the forces and moments acting on a 1/16th scale model of a laser yacht for apparent wind directions of 30 and 60 degrees, for heel angles of 0, 10, 20, and 30 degrees, and for smooth and turbulent sheared flow are presented. The results are discussed in terms of sail aerodynamics, and a transformation procedure is developed which leads to an excellent collapse of the measured results on the basis of calculated sail lift and drag coefficients.
Text
055.pdf
- Version of Record
More information
Published date: 1992
Additional Information:
ISSN 0140-3818. Visiting Senior Lecturer from the Department of Ship Science, University of Auckland, New Zealand
Identifiers
Local EPrints ID: 46414
URI: http://eprints.soton.ac.uk/id/eprint/46414
PURE UUID: 55c79cf8-19f0-459c-ab3d-ebe3a1a2bd7e
Catalogue record
Date deposited: 28 Jun 2007
Last modified: 15 Mar 2024 09:21
Export record
Contributors
Author:
R.G.J. Flay
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics