Czasopismo
Tytuł artykułu
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Warianty tytułu
Języki publikacji
Abstrakty
The aim of this study was to analyze the effects of depth on drag during the streamlined glide in swimming using Computational Fluid Dynamics. The Computation Fluid Dynamic analysis consisted of using a three-dimensional mesh of cells that simulates the flow around the considered domain. We used the K-epsilon turbulent model implemented in the commercial code Fluent® and applied it to the flow around a three-dimensional model of an Olympic swimmer. The swimmer was modeled as if he were gliding underwater in a streamlined prone position, with hands overlapping, head between the extended arms, feet together and plantar flexed. Steady-state computational fluid dynamics analyses were performed using the Fluent® code and the drag coefficient and the drag force was calculated for velocities ranging from 1.5 to 2.5 m/s, in increments of 0.50m/s, which represents the velocity range used by club to elite level swimmers during the push-off and glide following a turn. The swimmer model middle line was placed at different water depths between 0 and 1.0 m underwater, in 0.25m increments. Hydrodynamic drag decreased with depth, although after 0.75m values remained almost constant. Water depth seems to have a positive effect on reducing hydrodynamic drag during the gliding. Although increasing depth position could contribute to decrease hydrodynamic drag, this reduction seems to be lower with depth, especially after 0.75 m depth, thus suggesting that possibly performing the underwater gliding more than 0.75 m depth could not be to the benefit of the swimmer.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
55-62
Opis fizyczny
Daty
wydano
2012-06-01
online
2012-07-04
Twórcy
autor
autor
autor
autor
autor
autor
autor
- Department of Sports, University of Trás-os-Montes and Alto Douro, Health and Exercise, UTAD, Vila Real. Portugal
autor
Bibliografia
- Bixler B, Schloder M. Computational fluid dynamics: an analytical tool for the 21st century swimming scientist. J Swim Res, 1996; 11: 4-22
- Bixler B, Pease D, Fairhurst, F. The accuracy of computational fluid dynamics analysis of the passive drag of a male swimmer. Sports Biomech, 2007; 6: 81-98[PubMed][Crossref][WoS]
- Blanksby B, Gathercole D, Marshall N. Force plate and video analysis of the tumble turn by age group swimmers. J Swim Res, 1996; 11: 40-45
- Di Prampero P, Pendergast D, Wilson D, Rennie D. Energetics of swimming in man. J Appl Physiol, 1974; 37(1): 1-5[PubMed]
- Goya T, Sugiura K, Matsui A, Hideki T, Oghi Y, Tsurumine O, Takahashi S, Ogai, Y. Forces and image analysis on gliding motion for beginning and competitive swimmers. In: Book of Abstracts of the IXth Symposium on Biomechanics and Medicine in Swimming. University of Saint-Etienne, Saint-Etienne; 81, 2003
- Guimarães A, Hay J. A mechanical analysis of the grab starting technique in swimming. Int J Sports Biomech, 1985; 1: 25-35
- Haljand R, Saagpakk R. Swimming competition analysis of the European Sprint Swimming Championship. LEN, Stavanger; 1994
- Hertel H. Structure-Form-Movement. New York: Reinhold Publishing Corporation; 1966
- Hollander A, de Groot G, van Ingen Schenau G, Toussaint H, de Best H, Peeters W, Meulemans A, Schreurs A. Measurement of active drag during crawl stroke swimming. J Sports Sci, 1986; 4: 21-30[Crossref]
- Jiskoot J, Clarys JP. Body resistance on and under the water surface. In: Lewillie L, Clarys JP (eds.), Swimming II. University Park Press, Baltimore, 1975; 105-109
- Karpovich P. Water resistance in swimming. Res Quart, 1933; 4: 21-28
- Kemper H, Verschuur R, Clarys JP, Jiskoot J, Rijken H. Efficiency in swimming the front crawl. In: Komi PV (ed.), Biomechanics V-B. University Park Press, Baltimore, 1976; 243-249
- Kjendlie P, Stallman R. Drag characteristics of competitive swimming children and adults. J Appl Biomech, 2008; 24: 35-42[PubMed]
- Kolmogorov S, Duplisheva O. Active drag, useful mechanical power output and hydrodynamic force coefficient in different swimming strokes at maximal velocity. J Biomech, 1992; 25: 311-318[Crossref][PubMed]
- Kolmogorov S, Rumyantseva O, Gordon B, Cappaert J. Hydrodynamic characteristics of competitive swimmers of different genders and performance levels. J Appl Biomech, 1997; 13: 88-87
- Larsen O, Yancher R, Baer C. Boat design and swimming performance. Swimming Technique, Aug-Oct, 1981; 38-44
- Lavoi J, Montpetit R. Applied physiology of swimming. Sports Med, 1986; 3: 165-189[Crossref]
- Lyttle A, Blanksby B, Elliott B, Lloyd D. The effect of depth and velocity on drag during the streamlined glide. J Swim Res, 1998; 13: 15-22
- Lyttle AD, Blanksby BA, Elliott BC, Lloyd DG. Optimal depth for streamlined gliding. In: Keskinen KL, Komi PV, Hollander AP (eds.), Biomechanics and Medicine in Swimming VIII, Gummerus Printing, Jyvaskyla, 1999; 165-170
- Lyttle A, Blanksby B, Elliot B, Lloyd D. Net forces during tethered simulation of underwater streamlined gliding and kicking technique of the freestyle turn. J Sports Sci, 2000; 18: 801-807[Crossref]
- Marinho D, Rouboa A, Alves F, Vilas-Boas J, Machado L, Reis V, Silva A. Hydrodynamic analysis of different thumb positions in swimming. J Sports Sci Med, 2009a; 8(1): 58-66
- Marinho D, Reis V, Alves F, Vilas-Boas J, Machado L, Silva A, Rouboa A. The hydrodynamic drag during gliding in swimming. J Appl Biomech, 2009b; 25(3): 253-257[PubMed]
- Marinho D, Barbosa T, Kjendlie P, Vilas-Boas J, Alves F, Rouboa A, Silva A. Swimming Simulation: A New Tool for Swimming Research and Practical Applications. In: Peters M (ed.), Lecture Notes in Computational Science and Engineering - Computational Fluid Dynamics for Sport Simulation. Springer, Berlin; 2009c, 33-62
- Marinho DA, Barbosa TM, Rouboa AI, Silva AJ. The hydrodynamic study of the swimming gliding: a two-dimensional computational fluid dynamics analysis. J Hum Kinet, 2011; 29: 80-89
- Morais JE, Costa MJ, Mejias EC, Marinho DA, Silva AJ, Barbosa TM. Morphometric study for estimation and validation of trunk transverse surface area to assess human drag force on water. J Hum Kinet, 2011; 28: 5-13[PubMed]
- Moreira A, Rouboa A, Silva A, Sousa L, Marinho D, Alves F, Reis V, Vilas-Boas JP, Carneiro A, Machado L. Computational analysis of the turbulent flow around a cylinder. Port J Sport Sci, 2006; 6(Suppl. 1): 105
- Sanders R, Psycharakis S, McCabe C, Naemi R, Connaboy C, Li S, Scott G, Spence A. Analysis of swimming technique: state of the art - applications and implications. Port J Sport Sci, 2006; 6 (Supl. 2): 20-24
- Ugolkova I. Biomechanical analysis of interaction between swimmer and water during take off and gliding. In: Parisi P, Pigozzi F, Prinzi G (Eds.), Proceedings of the 4th Congress of the European College of Sports Science, Rome, 1999; 37-52
- Ungerechts A. Factors affecting drag estimated by flume swimming. In: Miyashita M, Mutoh M, Richardson R (eds.), Medicine and science in aquatic sports, Med Sci Sport Exer, 1994; 39: 137-142
- Vennell R, Pease D, Wilson B. Wave drag on human swimmers. J Biomech, 2006; 39: 664-671[PubMed][Crossref]
- Vilas-Boas J, Fernandes R, Kolmogorov S. Hydrodynamic drag and active mechanical power maximum prejunior swimmers of Portugal. Port J Sport Sci, 2001; 1(3): 14-21
- Vogel S. Life in moving fluids. The Physical Biology of Flow. Princeton University Press, Princeton; 1994
- Vorontsov A, Rumyantsev V. Resistive forces in swimming. In: Zatsiorsky V (Ed.), Biomechanics in Sports: performance enhancement and injury prevention; 2000
Typ dokumentu
Bibliografia
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Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_v10078-012-0044-2