Separation control from the flap of a high-lift airfoil using DBD plasma actuation

Jesse Little, Munetake Nishihara, Igor Adamovich, Mo Samimy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Scopus citations

Abstract

This work presents preliminary results of flow separation control from the flap of a high-lift airfoil using a single dielectric barrier discharge (DBD) plasma actuator. Control effectiveness is investigated for two actuator locations as well as various reduced frequencies, applied voltages and waveforms. Results show that a single DBD plasma actuator located at the flap shoulder can slightly increase or reduce the size of the time-averaged separation bubble over the flap depending on the frequency of actuation. This effectiveness is not improved by an increase in applied voltage or a change from a sinusoidal to positive sawtooth waveform for the cases examined. Spatial eigenmodes calculated from two-component PIV using POD show that a single DBD plasma actuator at the flap shoulder can have a significant effect on the structure of higher order modes. However the corresponding energy of these modes is low in comparison to the dominant modes in the wake.

Original languageEnglish (US)
Title of host publication4th AIAA Flow Control Conference
StatePublished - Dec 1 2008
Externally publishedYes
Event4th AIAA Flow Control Conference - Seattle, WA, United States
Duration: Jun 23 2008Jun 26 2008

Publication series

Name4th AIAA Flow Control Conference

Other

Other4th AIAA Flow Control Conference
CountryUnited States
CitySeattle, WA
Period6/23/086/26/08

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Aerospace Engineering
  • Control and Systems Engineering

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    Little, J., Nishihara, M., Adamovich, I., & Samimy, M. (2008). Separation control from the flap of a high-lift airfoil using DBD plasma actuation. In 4th AIAA Flow Control Conference [2008-4200] (4th AIAA Flow Control Conference).