PIV measurements of a zero-net-mass-flux jet in cross-flow

M. Gordon, J. Soria

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

Abstract

Particle image velocimetry (PIV) is used to study a circular zero-net-mass-flux (ZNMF) jet in cross-flow. ZNMF jets are formed using the working fluid of the system without net transfer of fluid mass into the system during one period of oscillation. Two ZNMF jets in cross-flow are investigated in this study. They are characterised by Rej = 1240, R = 4.6, St = 0.016, and Rej = 2960, R = 7, St = 0.014. Phase-averaged vector fields in the jet near-field are presented and the time dependent volume-flow is calculated to study the formation of the jets. Ensemble-averaged vector fields in the jet far-field are presented to study the mean jet structure. The vector fields are used to determine jet trajectory and the velocity variation along the trajectory. These results are discussed and compared to continuous and pulsed jets in cross-flow. Jet formation is found to be similar to free ZNMF jets. Jet development is found to be similar to free pulsed jets. Penetration and far-field velocity decay are found to be similar to continuous jets in cross-flow.

Original languageEnglish
Title of host publicationDLR - Mitteilungen
Pages765-775
Number of pages11
Edition3
Publication statusPublished - 1 Dec 2001
EventInternational Symposium on Particle Image Velocimetry (PIV) 2001 - Gottingen, Germany
Duration: 17 Sep 200119 Sep 2001

Publication series

NameDLR-Mitteilung
ISSN (Print)1434-8462

Conference

ConferenceInternational Symposium on Particle Image Velocimetry (PIV) 2001
Abbreviated titlePIC 2001
CountryGermany
CityGottingen
Period17/09/0119/09/01

Cite this