Single dielectric barrier aerodynamic plasma actuation

Patent

Description

A single dielectric barrier aerodynamic plasma actuator apparatus based on the dielectric barrier discharge phenomenon is disclosed and suggested for application to aerodynamic uses for drag reduction, stall elimination and airfoil efficiency improvement. In the plasma actuator apparatus non-uniform in time and space, partially ionized gasses are generated by one or more electrode pairs each having one electrically encapsulated electrode and one air stream exposed electrode and energization by a high-voltage alternating current waveform. The influence of electrical waveform variation, electrode polarity, electrode size and electrode shape on the achieved plasma are considered along with theoretical verification of achieved results. Light output, generated thrust, ionizing current waveform and magnitude and other variables are considered. Misconceptions prevailing in the present day plasma generation art are addressed and are believed-to-be corrected. The influence of electrostatic shielding effects of the developed plasma on the applied electric field are also considered.

Attributes

Attribute NameValues
Title
  • Single dielectric barrier aerodynamic plasma actuation

Patent Number
  • US 7380756 B2

USPTO Link
Inventor
  • Carl L. Enloe

  • Thomas E. McLaughlin

  • Eric J. Jumper

  • Thomas C. Corke

Inventor From Local Institution
  • Eric J. Jumper

  • Thomas C. Corke

Other Application
  • 10/994,029

Claims
  • 24

Classification (US Patent)
  • 244/175; 244/130; 244/198; 244/205;

Cooperative Patent Classification codes
  • B64C 23/005 (20130101); F05D 2270/172 (20130101); Y02T 50/166 (20130101); B64C 2230/12 (20130101)

International Patent Classification codes
  • B64C 13/02 (20060101)

Language
  • eng

Date Issued
  • 2008-06-03

Publisher
  • United States Patent and Trademark Office

Assignee
  • The United States of America as represented by the Secretary of the Air Force (Washington, DC)

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