Aerodynamics of tennis balls - effect of wear

GOODWILL, S. R. and HAAKE, Steve (2004). Aerodynamics of tennis balls - effect of wear. In: HUBBARD, M., MEHTA, R. D. and PALLIS, J. M., (eds.) The engineering of sport 5. International sports engineering assocation, 35-41.

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Abstract

The aerodynamic properties of spinning balls were obtained using a wind tunnel with a dedicated force balance. The ball was spun at rates of up to 2750 rpm, which is representative of a typical top spin shot hit by a professional player. Drag and life coefficients (CD and CL respectively) were measured for a range of balls which had been subjected to varying amounts of wear. Both CD and CL of the worn balls were generally lower than those of the new balls. A trajectory plot was used to show that the heavily worn balls would give a receiver 1.5% less reaction time.

Item Type:	Book Section
Additional Information:	Proceedings of the 5th international conference on the engineering of sport
Research Institute, Centre or Group - Does NOT include content added after October 2018:	Centre for Sports Engineering Research
Page Range:	35-41
Depositing User:	Carole Harris
Date Deposited:	03 Aug 2010 09:24
Last Modified:	18 Mar 2021 11:01
URI:	https://shura.shu.ac.uk/id/eprint/2234

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