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Local density information obtained by means of the Background Oriented Schlieren (BOS) method

Klinge, Falk and Riethmuller, Michel (2002) Local density information obtained by means of the Background Oriented Schlieren (BOS) method. 11th International Symposium on Applications of Laser Techniques to Fluid Mechanics, 2002-07-08 -2002-07-11, Lisabon (Portugal).

Full text not available from this repository.

Abstract

The fairly new measurement system BOS is providing promising results by allowing the visualisation of qualitative density gradients as presented by Richard et al (2000). This paper shows that it is possible to measure local density information by means of BOS for the specific application of a 2D jet. An experiment is described to present the feasibility of BOS to measure local density information. A slit nozzle blowing an air / helium mixture was investigated by BOS and Catharometry. Comparing the obtained results and taking the Catharometry measurement as the reference, the accuracy of the density information provided by BOS can be evaluated: The small difference between the results of the two measurement techniques confirms the applicability and accuracy of BOS for local density measurements in 2D density gradient investigations.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Local density information obtained by means of the Background Oriented Schlieren (BOS) method
Authors:
AuthorsInstitution or Email of Authors
Klinge, FalkUNSPECIFIED
Riethmuller, MichelVKI, Chaussée de Waterloo 72, 1640 Rhode-Saint-Genèse, Belgium
Date:2002
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-10
Series Name:Conference Proceedings
Status:Published
Keywords:BOS, Catharometry, local density refractive index, quantitative, Helium
Event Title:11th International Symposium on Applications of Laser Techniques to Fluid Mechanics
Event Location:Lisabon (Portugal)
Event Type:international Conference
Event Dates:2002-07-08 -2002-07-11
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Ilka Micknaus
Deposited On:04 Oct 2007
Last Modified:27 Apr 2009 14:12

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