A pressure recovery system for chemical oxygen-iodine laser based on an active diffuser |
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Authors: | V M Malkov I A Kiselev A E Orlov I V Shatalov |
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Institution: | 1.Advent Scientific Production Association,St. Petersburg,Russia;2.Laser Systems Ltd.,St. Petersburg,Russia |
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Abstract: | 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. |
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Keywords: | |
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