A COMPUTATIONAL MODEL OF A CHEMICAL PULSE ЯЯ-LASER WITH RESPECT TO ROTATIONAL EQUILIBRIUM AND NONHARMONIC NATURE OF OSCILLATING RELAXATION PROCESSES

A. V. Kondrashenko, G. M. Mishchenko, T. G. Sevastianova, V. D. Urlin
VANT. Ser. Metodiki i Programmy Chislennogo Resheniya Zadach Matematicheskoy Fiziki 1988. Вып.3. С. 64-70.

      We present a computational model of a chemical pulse laser based on F₂+H₂ reaction accounting a deviation from a rotational equilibrium and also a nonharmonic nature of oscillating relaxation processes. Literature analysis and comparison between theoretical values of generation parameters and experimental data yielded a set of kinetic constants for elementary process velocities which allows to predict space, time and energy characteristics of a HF-laser with a sufficient reliability. For optical, electron beam and electric discharge initiation, a good agreement with experiment is achieved. Our results indicate the importance of accounting the nonharmonic nature of oscillating relaxation processes when computationally analyzing kinetic processes in an active environment of such lasers.