Method of delaying the separation of the boundary layer on a wall having an incident fluid flow, and application thereof

摘要

In a method of delaying the separation of the boundary layer on a wall (3) having an incident fluid flow, smooth fibres (15) or the like pointing approximately in the flow direction (2) are attached to the wall (3). In order to be able to apply this method economically for walls (3) in the building of fluid-flow machines, the fibres (15) are connected to the wall (3) in a stepless fashion at their end (16) pointing against the flow direction (2), and arranged at their opposite end (17) freely movable relative to the wall (3), so that the free end (17) aligns itself automatically parallel and/or perpendicular to the wall (3) in accordance with the forces of the fluid acting at this end. <IMAGE>