A pressure recovery system for chemical oxygen-iodine laser based on an active diffuser

An open-type pressure recovery system (PRS) for chemical oxygen-iodine laser was designed and fabricated. As a first stage, an active diffuser was used in which the ejecting gas supply was organized through nozzles disposed around the channel periphery. The second stage was a supersonic ejector. Num...

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Bibliographic Details
Published in:Thermophysics and aeromechanics 2011-09, Vol.18 (3), p.381-395
Main Authors: Malkov, V. M., Kiselev, I. A., Orlov, A. E., Shatalov, I. V.
Format: Article
Language:English
Subjects:
Physics
Physics and Astronomy
Thermodynamics
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Summary:An open-type pressure recovery system (PRS) for chemical oxygen-iodine laser was designed and fabricated. As a first stage, an active diffuser was used in which the ejecting gas supply was organized through nozzles disposed around the channel periphery. The second stage was a supersonic ejector. Numerical simulation data for the viscous turbulent flow with heat release through the diffuser gas-dynamic channel, and also data obtained by testing the active diffuser in operation on a model facility equipped with a vacuum chamber, are reported. The obtained data were used to develop a full-scale setup with exhaust of laser gas into the atmosphere; this has allowed us to optimize the performance characteristics of the setup and substantially improve its mass-dimensional characteristics. Special attention was paid to parameter matching and synchronization of laser start with the operation of PRS components.
ISSN:0869-8643
1531-8699
DOI:10.1134/S0869864311030048