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Aerodynamic characteristics of a jet sheet vortex generator. [wind tunnel tests using thin, low aspect ratio wings
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Wooler, P. T. Ziegler, H. |
| Copyright Year | 1978 |
| Description | A configuration concept for augmenting the lift capability of low aspect ratio, thin wings, typically used on fighter aircraft was investigated. The fluid strake concept uses a jet sheet formed by blowing from a series of small orifices located in the side of the fuselage ahead of the wing to generate a stable vortex flow over the wing at high angle of attack. The effect of the location of the fluid strake relative to the wing was investigated for three different designs of the in-line orifices using a half-span model tested in a 7 by 10 foot low speed tunnel. Based on the results of the low speed test, a jet sheet producing module was incorporated into a NASA general research fighter model and tested in the Langley 7 by 10 foot high speed tunnel to determine the effectiveness of the fluid strake as a lift-enhancement device in the high-speed maneuver regime. Tests were conducted over a Mach number range from 0.3 to 0.8, with a jet momentum coefficient range from 0 to 0.24. Significant lift increments resulted at the higher angles of attack and drag polars were improved. |
| File Size | 8038939 |
| Page Count | 61 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19780020111 |
| Archival Resource Key | ark:/13960/t0sr3p98t |
| Language | English |
| Publisher Date | 1978-06-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Vortex Sheets Directional Stability Aerodynamic Configurations Low Aspect Ratio Wings Wind Tunnel Tests Vortex Generators Thin Wings Aerodynamic Characteristics Fighter Aircraft Lift Augmentation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
