FLUID FLOW MODIFICATION APPARATUS AND METHOD OF MANUFACTURE

摘要

A fluid flow modification apparatus (10) has a surface (15), the surface having an edge (65) of length Y over or past which a fluid can flow in use. The edge (65) has a virtual boundary (30) of length X where Y is greater than X. At least a first portion of the apparatus (10) within the virtual boundary (30) comprises an opening (55) and at least a second portion of the apparatus (10) comprises a projection (60) which extends beyond the virtual boundary (30) to provide the edge (65). The edge (65) is multi-scale.