Sublimation and vaporization of an ice aerosol particle in the form of thin cylinder by laser radiation

Formulae for heat and mass exchange from the surface of ice particles of di fferent forms are derived. Destruction of plate. cylindrical and spherical particles in the sublimation regime, as well as the subsequent melting (cyl inder, disk) and evaporation of the water droplet formed are investigated. The study was conducted for the parameters averaged over the particle volum e: heat release intensity, temperature, evaporation efficiency, etc. Heatin g time, melting time, evaporation time, evaporation efficiency, temperature for particles in the form of thin long cylinder is presented versus the in tensity of laser radiation at various temperatures and pressures of the sur rounding air. The results are compared with the correspondent evaporation p arameters of a supercooled spherical water droplet. (C) 2000 Elsevier Scien ce Ltd. All rights reserved.