Flow Control over a Circular-Cone-Cylinder by Unsteady Plasma Actuations

Jiang Nan Hao; Chao Gao; Yin Zhe Li

doi:10.4028/www.scientific.net/AMR.160-162.933

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 160-162Flow Control over a Circular-Cone-Cylinder by...

Flow Control over a Circular-Cone-Cylinder by Unsteady Plasma Actuations

Abstract:

An experimental study of plasma duty-cycled actuation over slender forebodies is performed on a 20° circular-cone-cylinder model using a pair of Single Dielectric Barrier Discharge (SDBD) plasma actuators near the cone apex combined with a duty-cycle technique. The tests are carried out in a low-turbulence 3.0 m ×1.6 m low-speed wind tunnel at an angle of attack of 45°. The Reynolds number based on the cone base diameter is 50, 000. The frequency of the duty cycle is 10 Hz. The mechanisms of the unsteady excitations over various duty cycles of frequency 10 Hz are studied using ten Kulite pressure transducers mounted around a cross section of the cone forebody at angle of attack of 45°.The circumferential pressure distributions over a station on the cone forebody is measured by unsteady pressure tappings, Phase-locked averaged pressures are studied and compared with ensemble-averaged pressures.

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Periodical:

Advanced Materials Research (Volumes 160-162)

Pages:

933-938

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.160-162.933

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Online since:

November 2010

Authors:

Jiang Nan Hao, Chao Gao, Yin Zhe Li

Keywords:

Flow Control, High Incidence Aerodynamics, Plasma, Stability of Vortex

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