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Simultaneous PLIF/PIV measurements of pulsating and heated coaxial jets in a turbulent channel flow

Klinner, Joachim and Willert, Christian and Förster, Wolfgang and Beversdorff, Manfred and Mayer, Valentin (2015) Simultaneous PLIF/PIV measurements of pulsating and heated coaxial jets in a turbulent channel flow. Begell House inc., New York, Wallingford (UK). ISBN 978-1-56700-427-4. ISSN 2377-2816

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Official URL: http://www.thmt-15.org

Abstract

Simultaneous velocity and concentration measurements of the mixing of a confined coaxial jet in air are performed in a small scale windtunnel at atmospheric pressure, constant mass flow rates and three modes of operation: isothermal steady jet injection (Red = 32000); pulsed isothermal injection (St=0.08) and steady injection at elevated jet temperatures of dT=50K and dT=100 K. Instantaneous measurements of mass fraction are implemented using planar laser induced fluorescence (PLIF) of the acetone seeded injected flow. Simultaneous two-component velocity measurements are performed using particle image velocimetry (PIV). The contribution provides details of the PLIF-PIV measurement setup, data evaluation and accuracy estimation. Stochastic error convergence over the number of samples is assessed within the turbulent shear layer for first and second moments of velocity and mass fraction. Results from all modes of operation are discussed on the basis of velocity, mass fraction, Reynolds shear stress and turbulent mass flux.

Item URL in elib:https://elib.dlr.de/98339/
Document Type:Proceedings
Title:Simultaneous PLIF/PIV measurements of pulsating and heated coaxial jets in a turbulent channel flow
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Klinner, Joachimjoachim.klinner (at) dlr.deUNSPECIFIED
Willert, Christianchris.willert (at) dlr.deUNSPECIFIED
Förster, Wolfgangwolfgang.foerster (at) dlr.deUNSPECIFIED
Beversdorff, Manfredmanfred.beversdorff (at) dlr.deUNSPECIFIED
Mayer, ValentinUNSPECIFIEDUNSPECIFIED
Date:15 September 2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:8
Page Range:pp. 209-212
Editors:
EditorsEmail
Hanjalic, K.UNSPECIFIED
Miyauchi, T.UNSPECIFIED
Borello, D.UNSPECIFIED
Hadziabdic, M.UNSPECIFIED
Venturini, P.UNSPECIFIED
Publisher:Begell House inc., New York, Wallingford (UK)
ISSN:2377-2816
ISBN:978-1-56700-427-4
Status:Published
Keywords:pulsating jet, heated jet, turbulent mass flux, acetone PLIF, PIV, phase sorting
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:propulsion systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Virtual Engine and Validation methods
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology
Deposited By: Klinner, Joachim
Deposited On:30 Sep 2015 13:46
Last Modified:30 Sep 2015 13:46

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