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Computational fluid dynamics applied to competitive swimming: the role of finge...
Marinho, D.A.; Barbosa, Tiago M.; Kjendlie, P.L.; Reis, V.M.; Vilas-Boas, J.P.; Machado, L.; Rouboa, A.; Silva, A.J.The best fingers’ relative position during the underwater path of the stroke cycle in swimming seems to be an unclear issue. Even in elite level swimmers, different relative positions of thumb and finger spreading can be observed. The aim of the current abstract was to present the hydrodynamic characteristics of a true model of a swimmer’s hand with different fingers’ positions using computational CFD.
Swimming propulsion forces are enhanced by a small finger spread
Marinho, D.A.; Barbosa, Tiago M.; Reis, V.M.; Kjendlie, P.L.; Alves, F.B.; Vilas-Boas, J.P.; Machado, L.; Silva, A.J.; Rouboa, A.The main aim of this study was to investigate the effect of finger spread on the propulsive force production in swimming using computational fluid dynamics. Computer tomography scans of an Olympic swimmer hand were conducted. This procedure involved three models of the hand with differing finger spreads: fingers closed together (no spread), fingers with a small (0.32 cm) spread, and fingers with large (0.64 cm)...
Modelling hydrodynamic drag in swimming using computational fluid dynamics
Marinho, D.A.; Barbosa, Tiago M.; Kjendlie, P.L.; Mantripragada, N.; Vilas-Boas, J.P.; Machado, L.; Alves, F.B.; Rouboa, A.; Silva, A.J.In the sports field, numerical simulation techniques have been shown to provide useful information about performance and to play an important role as a complementary tool to physical experiments. Indeed, this methodology has produced significant improvements in equipment design and technique prescription in different sports (Kellar et al., 1999; Pallis et al., 2000; Dabnichki & Avital, 2006). In swimming, this ...
Swimming simulation: a new tool for swimming research and practical applications
Marinho, D.A.; Barbosa, Tiago M.; Kjendlie, P.L.; Vilas-Boas, J.P.; Alves, F.B.; Rouboa, A.; Silva, A.J.Swimming is one of the major athletic sports and many efforts are being made to establish new records in all events. To swim faster, thrust should be maximized and drag should be minimized. These aims are difficult to achieve because swimmers surge, heave, roll and pitch during every stroke cycle. In addition, measurements of human forces and mechanical power are difficult due to the restrictions of measuring d...
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