Control of spiral vortices in transition process of rotating cone boundary layer by acoustic excitation

Ryoji Kobayashi, Yu Fukunishi, Yuji Egami, Eiko Akimoto

Research output: Contribution to journalArticlepeer-review

Abstract

Experimental study is conducted in order to investigate the feasibility of controlling spiral vortices which appear in the transition process of the boundary layer on the surface of a cone rotating around its symmetrical axis in still air. It is shown that the number of spiral vortices, which is 26 without excitation, can be controlled from 18 to 80 through acoustic excitation.

Original languageEnglish
Pages (from-to)2856-2860
Number of pages5
JournalTransactions of the Japan Society of Mechanical Engineers Series B
Volume61
Issue number588
DOIs
Publication statusPublished - 1995

Keywords

  • Acoustic Excitation
  • Axisymmetric Flow
  • Boundary Layer
  • Rotating Cone
  • Spiral Vortices
  • Transition
  • Turbulence

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

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