Noise Reduction Through Circulation Control
In: Proceedings of the 2004 NASA/ONR Circulation Control Workshop, Part 1, 2005-06-01
Online
report
Circulation control technology uses tangential blowing around a rounded trailing edge or a leading edge to change the force and moment characteristics of an aerodynamic body. This technology has been applied to circular cylinders, wings, helicopter rotors, and even to automobiles for improved aerodynamic performance. Only limited research has been conducted on the acoustic of this technology. Since wing flaps contribute to the environmental noise of an aircraft, an alternate blown high lift system without complex mechanical flaps could prove beneficial in reducing the noise of an approaching aircraft. Thus, in this study, a direct comparison of the acoustic characteristics of high lift systems employing a circulation control wing configuration and a conventional wing flapped configuration has been made. These results indicate that acoustically, a circulation control wing high lift system could be considerably more acceptable than a wing with conventional mechanical flaps.
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Noise Reduction Through Circulation Control
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Autor/in / Beteiligte Person: | Munro, Scott E ; Ahuja, K. K ; Englar, Robert J |
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Zeitschrift: | Proceedings of the 2004 NASA/ONR Circulation Control Workshop, Part 1, 2005-06-01 |
Veröffentlichung: | United States: NASA Center for Aerospace Information (CASI), 2005 |
Medientyp: | report |
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