METHOD OF REDUCING DRAG OF MOVING OBJECT AND DEVICE FOR ITS EMBODIMENT Russian patent published in 2001 - IPC

FIELD: aerodynamics. SUBSTANCE: method consists in change of direction of incoming flow by forming rotational flow near moving object by means of surfaces made in the form of members reflecting the incoming flow and located in such way that parallel direction of running-off flow is ensured relative to incoming flow. Center of rotational flow is located at distance exceeding thickness of boundary layer of flow for each reflecting surface. Besides, reflecting members are spatially located in billiard trajectories. Distance between reflecting members are selected depending on position of center of rotation of flow outside reflecting members and that of rotational flow at a distance exceeding thickness of boundary layer of flow for each reflecting member. EFFECT: reduction of drag; enhanced efficiency. 14 cl, 6 dwg