Authors
Filipović Nenad, Center for Scientific Research SASA
Zivkovic Petar, Center for Scientific Research SASA
Abstract
The main goal of this study was to determine the minimal distance between two swimmers so that the draft force of the lead swimmer does not affect the one at his rear. We were also able to specify the best possible position of the swimmer's body during swimming (diving), so the resistance of the environment is adjusted to minimal. These facts allow trainers not only to manage a whole group of swimmers so that they do not affect each other’s performance during the training, but also eventually to suggest correction in the swimming technique for each of them. It was found that the relative coefficient of resistance of the drafting swimmer was reduced by 50 % for the distance of 60-70cm, 95% for 6-7m and totally reduced for the distance of 8m.
Keywords
Aquatics, swimming, computer model, fluid flow
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References
- Bassett, D. R., Flohr, J., Duey, W. J., Howley, E. T. & Pein, R. L. (1991) Metabolic responses to drafting during front crawl swimming. Medicine and Science in Sports and Exercise, 23(6), 744-747.
- Candalai, R. S., & Reddy, N. P. (1992). Stress distribution in a physical buttock model: effect of simulated bone geometry. Journal of Biomechanics, 15, 493-504.
- Chatard, J. C. & Wilson, B. (2003). Drafting distance in swimming. Medicine and Science in Sports and Exercise, 35(7), 1176-1181.
- Hausswirth, C., Lehenaff, D., Dreano, P. & Savonen, K. (1999). Effects of cycling alone or in a sheltered position on subsequent running performance during a triathlon. Medicine and Science in Sports and Exercise, 31(4), 599-604.
- Hausswirth, C., Vallier, J. M., Lehenaff, D., Brisswalter, J., Smith, D., Millet, G. & Dreano, P. (2001). Effect of two drafting modalities in cycling on running performance. Medicine and Science in Sports and Exercise, 33(3), 485-492.
- José Silva, A., Rouboa, A., Moreira, A., Reis, V. M., Alves, F., Vilas-Boas, J. P. & Marinho, D. A. (2008) Analysis of drafting effects in swimming using computational fluid dynamics. Journal of Sports Science and Medicine, 7, 60-66.
- Filipovic, N. & Kojic, M. (2004). Computer simulations of blood flow with mass transport through the carotid artery bifurcation. Theoretical and Applied Mechanics, 31(1), 1-33. (in Serbian).
- Filipovic, N. (1999). Numerical Analysis of Coupled Problems: Deformable Body and Fluid Flow. Unpublished Ph. D. Thesis, Kragujevac, Serbia: University of Kragujevac.
- Kojic, M., Filipovic, N., Zivkovic, M., Slavkovic, R. & Grujovic, N. (1998). PAK-F Finite Element Program for Laminar Flow of Incompressible Fluid and Heat Transfer, Laboratory for Engineering Software. Faculty of Mechanical Enginering, University of Kragujevac, 34000 Kragujevac, Serbia-Yugoslavia.
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