| 摘要 |
PROBLEM TO BE SOLVED: To provide cowls for a separate flow nozzle, in which mixing between high temperature flow and low temperature flow is more effectively achieved to reduce jet noise at an outlet from the nozzle. SOLUTION: This device comprises the cowls 14 and 16 for a turbo machine nozzle, having a plurality of repeated patterns 26 disposed along the circumference at a rear edge 14a. Each pattern 26 is asymmetric to a center surface of the pattern including a length direction axis X-X of the cowls 14 and 16. Each pattern 26 is provided with a first part diametrically inclined inward of the cowls 14 and 16, and a second part diametrically inclined outward of the cowls 14 and 16. COPYRIGHT: (C)2006,JPO&NCIPI
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