Abstract
To increase the photoelectronic conversion efficiency of the single discharge
tube and to meet the requirements of the laser cutting system, optimization of the
discharge tube structure and gas flow field is necessary. We present a computational
fluid dynamic model to predict the gas flow characteristics of high-power fast-axial
flow CO2 laser. A set of differential equations is used to describe the operation of
the laser. Gas flow characteristics, are calculated. The effects of gas velocity and
turbulence intensity on discharge stability are studied. Computational results are
compared with experimental values, and a good agreement is observed. The method
presented and the results obtained can make the design process more efficient.
© 2011 Chinese Optics Letters
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