Dielectric barrier discharge control of a turbulent boundary layer in a supersonic flow

Seong Kyun Im, H. Do, M. A. Cappelli

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

We demonstrate effective manipulation of a turbulent boundary layer at Mach 4.7 conditions using a surface dielectric barrier discharge (DBD) actuator. The freestream conditions of low static pressure (1 kPa) and temperature (60 K) are conducive to the visualization of flow features using Rayleigh scattering from condensed CO2 particles. The boundary layer thinning is observed when spanwise momentum is induced by the low power (6.8 W), low frequency (28 kHz) single actuator pair oriented parallel to the freestream flow.

Original languageEnglish
Article number041503
JournalApplied Physics Letters
Volume97
Issue number4
DOIs
Publication statusPublished - 2010 Jul 26
Externally publishedYes

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supersonic flow
turbulent boundary layer
actuators
static pressure
flow visualization
Rayleigh scattering
manipulators
boundary layers
low pressure
low frequencies
momentum
temperature

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Dielectric barrier discharge control of a turbulent boundary layer in a supersonic flow. / Im, Seong Kyun; Do, H.; Cappelli, M. A.

In: Applied Physics Letters, Vol. 97, No. 4, 041503, 26.07.2010.

Research output: Contribution to journalArticle

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