Feedback control of vortex shedding around a bluff body by velocity excitation

S. Hiejima, T. Kumao, T. Taniguchi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A feedback control technique of vortex shedding behind a circular cylinder is investigated by means of two-dimensional numerical simulations. Fluid velocity excitation is applied to the separated shear flows at two positions on the cylinder surface with time delay and feedback gain for the fluid velocity at a downstream sensor position, It is shown that the feedback excitation can suppress the vortex shedding considerably, if the time delay of the excitation is varied in accordance with the change of the vortex shedding period and the sensor is located inside the vortex formation region behind the cylinder.

Original languageEnglish
Pages (from-to)87-92
Number of pages6
JournalInternational Journal of Computational Fluid Dynamics
Volume19
Issue number1
DOIs
Publication statusPublished - Jan 1 2005

Keywords

  • Circular cylinder
  • Excitation
  • Feedback control
  • Flow control
  • Karman vortices

ASJC Scopus subject areas

  • Computational Mechanics
  • Aerospace Engineering
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Feedback control of vortex shedding around a bluff body by velocity excitation'. Together they form a unique fingerprint.

  • Cite this