Instability of the vapor-gas cavity in processes of laser beam deep penetration into a condensed medium

F. Kh. Mirzoyev

doi:10.1117/12.337497

20 January 1999 Instability of the vapor-gas cavity in processes of laser beam deep penetration into a condensed medium

F. Kh. Mirzoyev

Proceedings Volume 3688, 6th International Conference on Industrial Lasers and Laser Applications '98; (1999) https://doi.org/10.1117/12.337497
Event: 6th International Conference on Industrial Lasers and Laser Applications '98, 1998, Shatura, Moscow Region, Russian Federation

Abstract

A theoretical model describing the dynamic behavior of the gas-vapor cavity (GVC) in the processes of laser beam deep penetration into condensed medium is presented. Non- equilibrium evaporation from the channel surface, non- stationary hydrodynamical processes and heat conduction in the melt are considered. Linear stability analysis of the GVC shape is performed. The conditions of a cavity instability and their relations with materials and irradiation properties were obtained. The frequencies of the cavity oscillations are calculated.

Citation Download Citation

F. Kh. Mirzoyev "Instability of the vapor-gas cavity in processes of laser beam deep penetration into a condensed medium", Proc. SPIE 3688, 6th International Conference on Industrial Lasers and Laser Applications '98, (20 January 1999); https://doi.org/10.1117/12.337497

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