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Proceedings Paper

Liquid breakup studies for singlet oxygen generators
Author(s): Wolfgang O. Schall; Daniela Kraft
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Paper Abstract

The instability of the liquid jets in a jet singlet oxygen generator for oxygen-iodine lasers may limit the operational conditions and the scalability of such generators. Therefore the type of instability and the breakup behavior of jets is investigated experimentally for varying operational conditions. Jets of basic hydrogen peroxide are simulated by the use of glycerin solutions with different viscosities. Two experimental setups with optical observation of the jet development are described. Transition from laminar to turbulent jets, the associated breakup modes and the beginning of jet dissolution by surface spraying are observed. For generator relevant jet diameters intact jet lengths were found to be limited to approx. 25 cm. Jets with driving pressure of more than 3 bar exhibited strong spraying from their surface. The jet diameter shrinks with increasing driving pressure.

Paper Details

Date Published: 13 February 1996
PDF: 8 pages
Proc. SPIE 2767, Fourth International Workshop on Iodine Lasers and Applications, (13 February 1996); doi: 10.1117/12.232190
Show Author Affiliations
Wolfgang O. Schall, DLR Institute of Technical Physics (Germany)
Daniela Kraft, DLR Institute of Technical Physics (Germany)

Published in SPIE Proceedings Vol. 2767:
Fourth International Workshop on Iodine Lasers and Applications
Karel Rohlena; Jarmila Kodymova; Bozena Kralikova, Editor(s)

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