| 摘要 |
The present invention provides a fluid dynamic body (1) having a trailing edge (10) with a pattern (12) formed thereon, the pattern(12) comprising a plurality of smoothly surfaced adjacent members (14) with respective interstices (16) there between, wherein at least one of the interstices (16) completely contains a porous barrier(18), the porous barrier (18) obstructing fluid flow through the respective interstice (16) between a first surface (101) of the fluid dynamic body (1) on a first side of the trailing edge (10) and a second surface (102) of the fluid dynamic body (1) on a second side of the trailing edge(10). This helps to reduce noise produced at the trailing edge. Preferably, the fluid dynamic body is a wind turbine blade or an aero- engine blade. The present invention also provides a method of manufacturing any such fluid dynamic body. |
