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Modelling propelling force in swimming using numerical simulations
Marinho, D.A.; Barbosa, Tiago M.; Mantha, V.; Rouboa, A.I.; 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 ...
The hydrodynamic study of the swimming gliding: a two-dimensional computational...
Marinho, D.A.; Barbosa, Tiago M.; Rouboa, A.I.; Silva, A.J.Nowadays the underwater gliding after the starts and the turns plays a major role in the overall swimming performance. Hence, minimizing hydrodynamic drag during the underwater phases should be a main aim during swimming. Indeed, there are several postures that swimmers can assume during the underwater gliding, although experimental results were not conclusive concerning the best body position to accomplish thi...
The effect of wearing a cap on the swimmers passive drag
Marinho, D.A.; Mantha, V.; Rouboa, A.I.; Vilas-Boas, J.P.; Machado, L.; Barbosa, Tiago M.; Silva, A.J.
The effect of wearing a cap on the swimmers passive drag
Marinho, D.A.; Mantha, V.; Rouboa, A.I.; Vilas-Boas, J.P.; Machado, L.; Barbosa, Tiago M.; Silva, A.J.
Three-dimensional CFD analysis of the hand and forearm in swimming
Marinho, D.A.; Silva, A.J.; Reis, V.M.; Barbosa, Tiago M.; Vilas-Boas, J.P.; Alves, F.B.; Machado, L.; Rouboa, A.The purpose of this study was to analyze the hydrodynamic characteristics of a realistic model of an elite swimmer hand/forearm using three-dimensional computational fluid dynamics techniques. A three-dimensional domain was designed to simulate the fluid flow around a swimmer hand and forearm model in different orientations (0°, 45°, and 90° for the three axes Ox, Oy and Oz). The hand/forearm model was obtained...
The effect on swimmer’s hydrodynamic drag wearing two swimsuits
Marinho, D.A.; Mantha, V.; Ramos, R.; Barbosa, Tiago M.; Vilas-Boas, J.P.; Rouboa, A.; Silva, A.J.
Dinâmica computacional de fluidos: análise do coeficiente de arrasto durante o ...
Ramos, R.J.; Marinho, D.A.; Mantha, V.; Barbosa, Tiago M.; Rouboa, A.; Ribeiro, J.; Machado, L.; Vilas-Boas, J.P.; Silva, A.J.O objectivo deste estudo foi analisar o efeito da profundidade no arrasto hidrodinâmico durante o deslize subaquático, utilizando a dinâmica computacional de fluidos.
The gliding phase in swimming: the effect of water depth
Marinho, D.A.; Barbosa, Tiago M.; Mantripragada, N.; Vilas-Boas, J.P.; Rouard, A.; Mantha, V.; Rouboa, A.; Silva, A.J.Aiming to achieve higher performances, swimmers should maximize each component of swimming races. During starts and turns, the gliding phase represents a determinant part of these race components. Thus, the depth position allowing minimizing the hydrodynamic drag force represents an important concern in swimming research. The aim of this study was to analyse the effect of depth on drag during the underwater gli...
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.
The gliding phase in swimming: the effect of water depth
Marinho, D.A.; Barbosa, Tiago M.; Mantripragada, N.; Vilas-Boas, J.P.; Rouard, A.; Mantha, V.; Rouboa, A.; Silva, A.J.The aim of this study was to analyse the effect of depth on drag during the underwater gliding. CFD simulations were applied to the flow around a 3D model of a male adult swimmer in a prone gliding position with the arms extended at the front. The domain to perform the simulations was created with 3.0 m depth, 3.0 m width and 11.0 m length. The drag coefficient and the hydrodynamic drag force were computed, usi...
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