Drag reducing arrangement for athlete

Details Drag reducing arrangement for athlete Drag reducing arrangement for athlete

A - Human Necessities

41

D

A41D 31/00 (2006.01) A41D 13/00 (2006.01)

Patent

CA 2214858

A drag reduction arrangement for the body (12, 13, 14) of an athlete moving through a fluid medium (2), comprises a device (11) attachable to the athlete's body for delaying the onset of boundary layer separation at a trailing surface thereof. The device preferably comprises an array of vortex generators (11). As a result, form drag is reduced by an amount which is substantially greater than any increase in skin friction due to the presence of the vortices.

La présente invention concerne un système de réduction de la résistance à l'air destiné au corps (12, 13, 14) d'un athlète se déplaçant dans un milieu fluide (2). Ce système se compose d'un dispositif (11) se fixant sur le corps de l'athlète et servant à retarder l'instant de décollement de la couche limite par rapport à la surface de fuite. Le dispositif est constitué de préférence d'une matrice de générateurs de tourbillons (11). Un tel système permet de réduire la traînée de forme dans des proportions sensiblement supérieures à l'augmentation du frottement superficiel imputable à la présence des tourbillons fixes.

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