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Proceedings Paper

Holographic interferometry in high-temperature flows using the high entalphy shock tunnel in Gottingen (HEG)
Author(s): Dirk Kastell; Georg Eitelberg; Sebastian Kortz; Burkhard Fleck
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Paper Abstract

For the optical flow visualization in the new high enthalpy shock tunnel of the German Aerospace Research Establishment (DLR) in Gottingen (HEG) a fully automated holographic interferometer has been installed and improved. The interferometer applies the phase shift technique, which enables computerized evaluation of the holograms, to create high quality interferograms. Because of the high resolution of the images, optical enlargement and hologram-schlieren is made possible. With the use of the simple Gladstone-Dale equation it is possible to calculate complete flow field gradients.

Paper Details

Date Published: 15 November 1994
PDF: 8 pages
Proc. SPIE 2248, Optical Measurements and Sensors for the Process Industries, (15 November 1994); doi: 10.1117/12.194350
Show Author Affiliations
Dirk Kastell, Institut fuer Stroemungsmechanik (Germany)
Georg Eitelberg, Institut fuer Stroemungsmechanik (Germany)
Sebastian Kortz, Institut fuer Stroemungsmechanik (Germany)
Burkhard Fleck, Friedrich-Schiller-Univ. Jena (Germany)


Published in SPIE Proceedings Vol. 2248:
Optical Measurements and Sensors for the Process Industries
Christophe Gorecki; Richard W. T. Preater, Editor(s)

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