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IGNITION AND STABILIZATION BY THE OPTICAL DISCHARGE OF HOMOGENEOUS BURNING IN HIGH-SPEED JET

https://doi.org/10.25205/2541-9447-2018-13-3-24-33

Abstract

The experimental research of influence of focused impulsno-periodic radiation СО2 - the laser on initiation and development of process of distribution of burning in to and a supersonic stream homogeneous fuel-air of mixes (СН4 + air) is spent. Radiation СО2-laserа extended across a stream and was focused by a lens on an axis of a supersonic stream. The shadow scheme was applied to registration of structure of a current with a crack and the flat knife located along a stream. The image it was fixed by the high-speed chamber in due course expositions 1.5 µs and frequency of shots 1000 1/s. It is shown, that at cross-section input of laser radiation in a flux the periodic structure of a thermal trace, with a forming of head jump of a gland from a band energy deposition is formed. At small frequencies of a resulting of pulses of laser radiation interaction of a thermal cloud with a flux occurs in a pulse mode. Is developmental process of non-stationary ignition by the optical category of a metano-air mix is shown at the subsonic expiration in motionless atmosphere. Results of optical visualization testify about burning in a trace behind a field of the optical category.

About the Authors

V. N. Zudov
S. A. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Russian Federation


P. K. Tretyakov
S. A. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Russian Federation


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Review

For citations:


Zudov V.N., Tretyakov P.K. IGNITION AND STABILIZATION BY THE OPTICAL DISCHARGE OF HOMOGENEOUS BURNING IN HIGH-SPEED JET. SIBERIAN JOURNAL OF PHYSICS. 2018;13(3):24-33. (In Russ.) https://doi.org/10.25205/2541-9447-2018-13-3-24-33

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ISSN 2541-9447 (Print)