An experimental and computational study of aerodynamic properties of rugby balls

Alam, F, Subic, A, Watkins, S, Naser, J and Rasul, M 2008, 'An experimental and computational study of aerodynamic properties of rugby balls', WSEAS Transactions on Fluid Mechanics, vol. 3, no. 3, pp. 279-286.


Document type: Journal Article
Collection: Journal Articles

Title An experimental and computational study of aerodynamic properties of rugby balls
Author(s) Alam, F
Subic, A
Watkins, S
Naser, J
Rasul, M
Year 2008
Journal name WSEAS Transactions on Fluid Mechanics
Volume number 3
Issue number 3
Start page 279
End page 286
Total pages 8
Publisher WSEAS
Abstract The aerodynamic properties of rugby balls as a function of wind speeds and yaw angles were measured using experimental and computational methods. The average drag and side forces coefficients for all speeds and yaw angles were computed and compared. The flow pattern around the rugby ball was visualized using wool tuft and smoke. No significant variation in Reynolds numbers was found in CFD results, however, some variations were noted in experimental findings. The average drag coefficient of a rugby ball at zero yaw was 0.18 and 0.14 in experimental and computational studies and this rose to about 0.60 and 0.50 when yawed at 90 degrees respectively.
Subject Aerodynamics (excl. Hypersonic Aerodynamics)
Keyword(s) drag coefficient
side force
wind tunnel
EFD
CFD
Copyright notice Copyright © 2008 WSEAS
ISSN 1790-5087
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