Control of flow separation with harmonic forcing and induced separation
US6360763B1 · kind B1 · utility
5Cited by
6References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 20, 2001 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Apr 20, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2224
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A diffuser (7) has a step (12) in the surface (9) just upstream of a point where boundary layer separation might occur. An acoustic jet (22) has a nozzle (17) immediately downstream of the step (12); the acoustic jet is driven (25) by a plurality of frequencies, one or more of which are subharmonics of another of them, and having different phases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.