elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

Temperature and velocity measurements in a fluid layer using background-oriented schlieren and PIV methods

Tokgoz, S. and Geisler, Reinhard and van Bokhoven, L. J. A. and Wieneke, Bernhard (2012) Temperature and velocity measurements in a fluid layer using background-oriented schlieren and PIV methods. Measurement Science and Technology, Vol. 23 (11, Paper 115302), pp. 1-10. IOP Publishing, UK. DOI: http://dx.doi.org/10.1088/0957-0233/23/11/115302. ISSN 0957-0233.

Full text not available from this repository.

Official URL: http://iopscience.iop.org/0957-0233/

Abstract

In this paper, we discuss temperature and velocity measurements inside a thin fluid layer using background-oriented schlieren (BOS) and particle image velocimetry (PIV) methods. BOS is a suitable technique for quantitative temperature measurements, but so far it has been used in fully transparent systems only. Introducing a reflective surface inside the measurement geometry which is optically accessible from only one viewing direction, we measure the refractive index change of a flow provided by two elliptical jets by visualizing displacements on a background target. Relation between the refractive index change and the temperature gradients is used to compute 2D temperature fields. Measurements are carried out for various temperature differences between the jets for both steady and dynamic flow. The simultaneous implementation of BOS and PIV techniques provides instantaneous, two-dimensional temperature gradients and velocity vectors inside the thin fluid layer.

Document Type:Article
Title:Temperature and velocity measurements in a fluid layer using background-oriented schlieren and PIV methods
Authors:
AuthorsInstitution or Email of Authors
Tokgoz, S.Delft University of Technology, Delft, The Netherlands
Geisler, ReinhardUNSPECIFIED
van Bokhoven, L. J. A.ASML, Veldhoven, The Netherlands
Wieneke, BernhardLaVision, Göttingen, Germany
Date:2012
Journal or Publication Title:Measurement Science and Technology
Refereed publication:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:Vol. 23
DOI:http://dx.doi.org/10.1088/0957-0233/23/11/115302
Page Range:pp. 1-10
Publisher: IOP Publishing, UK
ISSN:0957-0233
Status:Published
Keywords:BOS, temperature, PIV
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation & Validation
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Ilka Micknaus
Deposited On:10 Oct 2012 15:15
Last Modified:07 Feb 2013 20:15

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.