Numerical and experimental investigation of electromagnetic separation control using different wave forms

Research output: Contribution to book/Conference proceedings/Anthology/Report › Conference contribution › Contributed › peer-review

Contributors

  • Thomas Albrecht - , Helmholtz-Zentrum Dresden-Rossendorf (HZDR) (Author)
  • Tom Weier - , Helmholtz-Zentrum Dresden-Rossendorf (HZDR) (Author)
  • Gunter Gerbeth - , Helmholtz-Zentrum Dresden-Rossendorf (HZDR) (Author)
  • Hans Metzkes - , Chair of Fluid Mechanics (Author)
  • Jörg Stiller - , Chair of Fluid Mechanics (Author)

Abstract

We investigate the separated flow around an inclined flat plate at a Reynolds number of 104 by Direct Numerical Simulation (DNS) and time-resolved Particle Image Velocity (PIV). Flow separation is suppressed using sinusoidally and rectangularly oscillating Lorentz forces in streamwise direction. An rms momentum coefficient of 2.25% increases the time-averaged lift, deduced from PIV by a global momentum approach, by 20-45%. Whereas sinusoidal forcing increases both lift and drag, rectangular waves create no significant additional drag. Analysis of the DNS flow structures reveals different immediate vortex dynamics induced by the actuation.

Details

Original languageEnglish
Title of host publication5th Flow Control Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc. (AIAA)
ISBN (electronic)978-1-62410-140-3
Publication statusPublished - 2010
Peer-reviewedYes

External IDs

ORCID /0000-0002-6485-3825/work/193177021

Keywords

ASJC Scopus subject areas