TITLE

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

AUTHOR(S)
Im, S.; Do, H.; Cappelli, M. A.
PUB. DATE
July 2010
SOURCE
Applied Physics Letters;7/26/2010, Vol. 97 Issue 4, p041503
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
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.
ACCESSION #
52616393

 

Related Articles

  • Observations of Flow and Turbulence in the Nocturnal Boundary Layer over a Slope. Monti, P.; Fernando, H. J. S.; Princevac, M.; Chan, W. C.; Kowalewski, T. A.; Pardyjak, E. R. // Journal of the Atmospheric Sciences;9/1/2002, Vol. 59 Issue 17, p2513 

    Measurements were conducted on an eastern slope of the Salt Lake Basin (SLB) as a part of the Vertical Transport and Mixing Experiment (VTMX) conducted in October 2000. Of interest was the nocturnal boundary layer on a slope (in particular, katabatic flows) in the absence of significant synoptic...

  • High-Resolution Observations of Insects in the Atmospheric Boundary Layer. Contreras, Robert F.; Frasier, Stephen J. // Journal of Atmospheric & Oceanic Technology;Dec2008, Vol. 25 Issue 12, p2176 

    High spatial and temporal resolution S-band radar observations of insects in the atmospheric boundary layer (ABL) are described. The observations were acquired with a frequency-modulated continuous-wave (FMCW) radar during the 2002 International H20 Project (IHOP_2002) held in Oklahoma in the...

  • �Log-Chipper� Turbulence in the Convective Boundary Layer. Kimmel, Shari J.; Wyngaard, John C.; Otte, Martin J. // Journal of the Atmospheric Sciences;3/15/2002, Vol. 59 Issue 6, p1124 

    Turbulent fluctuations of a conservative scalar in the atmospheric boundary layer (ABL) can be generated by a scalar flux at the surface, a scalar flux of entrainment at the ABL top, and the "chewing up" of scalar variations on the mesoscale. The first two have been previously studied, while the...

  • An Improved Model for the Turbulent PBL. Cheng, Y.; Canuto, V. M.; Howard, A. M. // Journal of the Atmospheric Sciences;5/1/2002, Vol. 59 Issue 9, p1550 

    Second-order turbulence models of the Mellor and Yamada type have been widely used to simulate the planetary boundary layer (PBL). It is, however, known that these models have several deficiencies. For example, assuming the production of the turbulent kinetic energy equals its dissipation, they...

  • A New Dynamical Subgrid Model for the Planetary Surface Layer. Part II: Analytical Computation of Fluxes, Mean Profiles, and Variances. Dubrulle, Berengere; Laval, Jean-Philippe; Sullivan, Peter P. // Journal of the Atmospheric Sciences;2/15/2002, Vol. 59 Issue 4, p877 

    A new dynamical subgrid model for turbulent flow is used to derive the structure of the heat and momentum fluxes, mean wind and temperature profiles, and temperature and velocity variances, as a function of the Richardson number, in the surface layer of the planetary boundary layer. Analytical...

  • A New Dynamical Subgrid Model for the Planetary Surface Layer. Part I: The Model and A Priori Tests. Dubrulle, Berengere; Laval, Jean-Philippe; Sullivan, Peter P.; Werne, Joseph // Journal of the Atmospheric Sciences;2/15/2002, Vol. 59 Issue 4, p861 

    A new dynamical subgrid model for turbulent flow in the surface layer of the planetary boundary layer is presented. In this formulation, the flow is decomposed into small (subgrid) and large (resolved) scales in the spirit of large-eddy simulation. The subgrid model, however, is derived directly...

  • Intermittent Turbulence and Oscillations in the Stable Boundary Layer over Land. Part II: A System Dynamics Approach. Van de Wiel, B. J. H.; Moene, A. F.; Ronda, R. J.; De Bruin, H. A. R.; Holtslag, A. A. M. // Journal of the Atmospheric Sciences;9/1/2002, Vol. 59 Issue 17, p2567 

    In the stable boundary layer it is often observed that turbulence is not continuous in space and time. This discontinuous, intermittent turbulence causes alterations from the mean evolution of the stratified atmospheric boundary layer, which may result in an oscillatory type of behavior of the...

  • Summary report on the ARO/ARL workshop on turbulence and diffusion in the stable planetary... Nappo, Carmen J.; Bach Jr., Walter D. // Bulletin of the American Meteorological Society;Mar1997, Vol. 78 Issue 3, p493 

    Summarizes the results of the workshop on turbulence and diffusion in the stable planetary boundary layer (SPBL) held on January 11-13, 1994 in Arizona. Topics discussed during the workshop; Interactions of gravity waves with turbulence; List of recommendations for further research on...

  • Large-eddy simulation of a very large wind farm in a stable atmospheric boundary layer. Lu, Hao; Porté-Agel, Fernando // Physics of Fluids;Jun2011, Vol. 23 Issue 6, p065101 

    When deployed as large arrays, wind turbines significantly interact among themselves and with the atmospheric boundary layer. In this study, we integrate a three-dimensional large-eddy simulation with an actuator line technique to examine the characteristics of wind-turbine wakes in an idealized...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics