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The Effects of Plasma-Based Body Force on Flow Separation Suppression

  • Beihang University
  • Missouri University of Science and Technology
  • AVIC Aerodynamics Research Institute

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

The effects of dielectric barrier discharge (DBD) plasma-based body force on Reynolds stresses and flow structures are studied numerically on two basic test cases, which are NACA0015 airfoil flow and backward facing step flow. The function of the plasma actuator is considered as the body force, based on a phenomenological model, which is suggested by W. Shyy. A detached eddy simulation (DES) methods are applied in both benchmark flows. Two effects of the continuous force are identified in present study, one is acceleration of flow in the vicinity of the actuator or the forcing region, another is reduction of Reynolds stresses. As for pulsed force, Reynolds stresses will be increased, which is different from that of the continuous force cases. The underlying mechanisms are proposed in present paper.

Original languageEnglish
Title of host publicationComputational Methods in Applied Sciences
PublisherSpringer
Pages113-129
Number of pages17
DOIs
StatePublished - 2020

Publication series

NameComputational Methods in Applied Sciences
Volume52
ISSN (Print)1871-3033

Keywords

  • Body force
  • Detached eddy simulation
  • Plasma
  • Separated flow

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