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Title: Vortical flow control on a conical fore body cross section using an array of pulsed dc actuators

Abstract

Flow control on a conical fore body cross section of an aircraft is studied using plasma discharge by considering the neutral gas flow at 17.5 deg angle of attack. The equations governing the motion of electrons, ions as well as Poisson's equation are solved together with Navier-Stokes and energy equation for neutrals to study flow control. A single barrier discharge actuator is not sufficient to control the flow on the entire length of the fore body. An arrangement of multiple electrodes powered with pulsed dc voltage has been suggested for controlling such flows. The effects of joule heating of plasma, dielectric heating, and electrodynamic force have been investigated, separately and then combined on flow control. It is found that joule heating results in high temperature of the dielectric surface, however; electrodynamic force contributes prominently to flow control. A three-dimensional analysis is necessary to validate results with experiments.

Authors:
;  [1]
  1. Computational Plasma Dynamics Laboratory and Test Facility, Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611 (United States)
Publication Date:
OSTI Identifier:
20982841
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 101; Journal Issue: 9; Other Information: DOI: 10.1063/1.2720256; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ACTUATORS; AERODYNAMICS; AIRCRAFT; BOUNDARY LAYERS; CROSS SECTIONS; DIELECTRIC MATERIALS; ELECTRIC POTENTIAL; ELECTROHYDRODYNAMICS; GAS FLOW; JOULE HEATING; NAVIER-STOKES EQUATIONS; PLASMA; POISSON EQUATION; THREE-DIMENSIONAL CALCULATIONS

Citation Formats

Singh, Kunwar Pal, and Roy, Subrata. Vortical flow control on a conical fore body cross section using an array of pulsed dc actuators. United States: N. p., 2007. Web. doi:10.1063/1.2720256.
Singh, Kunwar Pal, & Roy, Subrata. Vortical flow control on a conical fore body cross section using an array of pulsed dc actuators. United States. doi:10.1063/1.2720256.
Singh, Kunwar Pal, and Roy, Subrata. Tue . "Vortical flow control on a conical fore body cross section using an array of pulsed dc actuators". United States. doi:10.1063/1.2720256.
@article{osti_20982841,
title = {Vortical flow control on a conical fore body cross section using an array of pulsed dc actuators},
author = {Singh, Kunwar Pal and Roy, Subrata},
abstractNote = {Flow control on a conical fore body cross section of an aircraft is studied using plasma discharge by considering the neutral gas flow at 17.5 deg angle of attack. The equations governing the motion of electrons, ions as well as Poisson's equation are solved together with Navier-Stokes and energy equation for neutrals to study flow control. A single barrier discharge actuator is not sufficient to control the flow on the entire length of the fore body. An arrangement of multiple electrodes powered with pulsed dc voltage has been suggested for controlling such flows. The effects of joule heating of plasma, dielectric heating, and electrodynamic force have been investigated, separately and then combined on flow control. It is found that joule heating results in high temperature of the dielectric surface, however; electrodynamic force contributes prominently to flow control. A three-dimensional analysis is necessary to validate results with experiments.},
doi = {10.1063/1.2720256},
journal = {Journal of Applied Physics},
number = 9,
volume = 101,
place = {United States},
year = {Tue May 01 00:00:00 EDT 2007},
month = {Tue May 01 00:00:00 EDT 2007}
}