GOODWILL, S. R. and HAAKE, S. J. (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.Full text not available from this repository.
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:||Centre for Sports Engineering Research|
|Depositing User:||Carole Harris|
|Date Deposited:||03 Aug 2010 10:24|
|Last Modified:||03 Aug 2010 10:24|
Actions (login required)
Downloads per month over past year