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Title: Dielectric barrier plasma dynamics for active control of separated flows

Abstract

The dynamics of separation mitigation with asymmetric dielectric barrier discharges is explored by considering the gas flow past a flat plate at an angle of attack. A self-consistent model utilizing motion of electrons, ions, and neutrals is employed to couple the electric force field to the momentum of the fluid. The charge separation and concomitant electric field yield a time-averaged body force which is oriented predominantly downstream, with a smaller transverse component towards the wall. This induces a wall-jet-like feature that effectively eliminates the separation bubble. The impact of several geometric and electrical operating parameters is elucidated.

Authors:
; ;  [1];  [2]
  1. Computational Plasma Dynamics Laboratory, Mechanical Engineering, Kettering University, Flint, Michigan 48504 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
20778843
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 88; Journal Issue: 12; Other Information: DOI: 10.1063/1.2187951; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ASYMMETRY; BOUNDARY LAYERS; BUBBLES; DIELECTRIC MATERIALS; ELECTRIC DISCHARGES; ELECTRIC FIELDS; ELECTROHYDRODYNAMICS; ELECTRONS; GAS FLOW; IONS; MITIGATION; PLASMA; PLATES; WALL EFFECTS

Citation Formats

Roy, Subrata, Singh, K.P., Gaitonde, Datta V., and Computational Sciences Branch, Air Vehicles Directorate, Air Force Research Laboratory, Wright Patterson AFB, Ohio 45433. Dielectric barrier plasma dynamics for active control of separated flows. United States: N. p., 2006. Web. doi:10.1063/1.2187951.
Roy, Subrata, Singh, K.P., Gaitonde, Datta V., & Computational Sciences Branch, Air Vehicles Directorate, Air Force Research Laboratory, Wright Patterson AFB, Ohio 45433. Dielectric barrier plasma dynamics for active control of separated flows. United States. doi:10.1063/1.2187951.
Roy, Subrata, Singh, K.P., Gaitonde, Datta V., and Computational Sciences Branch, Air Vehicles Directorate, Air Force Research Laboratory, Wright Patterson AFB, Ohio 45433. Mon . "Dielectric barrier plasma dynamics for active control of separated flows". United States. doi:10.1063/1.2187951.
@article{osti_20778843,
title = {Dielectric barrier plasma dynamics for active control of separated flows},
author = {Roy, Subrata and Singh, K.P. and Gaitonde, Datta V. and Computational Sciences Branch, Air Vehicles Directorate, Air Force Research Laboratory, Wright Patterson AFB, Ohio 45433},
abstractNote = {The dynamics of separation mitigation with asymmetric dielectric barrier discharges is explored by considering the gas flow past a flat plate at an angle of attack. A self-consistent model utilizing motion of electrons, ions, and neutrals is employed to couple the electric force field to the momentum of the fluid. The charge separation and concomitant electric field yield a time-averaged body force which is oriented predominantly downstream, with a smaller transverse component towards the wall. This induces a wall-jet-like feature that effectively eliminates the separation bubble. The impact of several geometric and electrical operating parameters is elucidated.},
doi = {10.1063/1.2187951},
journal = {Applied Physics Letters},
number = 12,
volume = 88,
place = {United States},
year = {Mon Mar 20 00:00:00 EST 2006},
month = {Mon Mar 20 00:00:00 EST 2006}
}