Flapping motion of a turbulent jet under the asymmetric excitation of two unsteady minijets

H. Yang, Y. Zhou, Y. Zhu, Y. Liu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)

Abstract

The control of a turbulent round jet is experimentally investigated based on the injection of two radial minijets, separated azimuthally by an angle θ = 60º, prior to the issue of the main jet. It has been found that the asymmetric excitation increases the decay rate of the jet centerline mean velocity by 30 % or more than the symmetric (θ = 180º). A flapping motion of the jet column is found to be responsible for the substantially increased jet mixing.
Original languageEnglish
Title of host publicationFluid-Structure-Sound Interactions and Control - Proceedings of the 3rd Symposium on Fluid-Structure-Sound Interactions and Control
PublisherSpringer Heidelberg
Pages259-264
Number of pages6
ISBN (Print)9783662488669
DOIs
Publication statusPublished - 1 Jan 2016
Event3rd Symposium on Fluid-Structure-Sound Interactions and Control,FSSIC 2015 - Perth, Australia
Duration: 5 Jul 20179 Jul 2017

Publication series

NameLecture Notes in Mechanical Engineering
VolumePart F3
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364

Conference

Conference3rd Symposium on Fluid-Structure-Sound Interactions and Control,FSSIC 2015
Country/TerritoryAustralia
CityPerth
Period5/07/179/07/17

Keywords

  • Active jet control
  • Flapping motion
  • Minijet

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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