INVESTIGATION OF THE DYNAMICS OF EVAPORATION OF CONDENSED BODIES ON THE BASIS OF THE LAW OF SPECTRAL-RADIATION INTENSITY OF PARTICLES
The article is published by way of discussion. N. I. Nikitenko UDC 536.42:539.1 The fundamentals of radiation theory and the mechanism of evaporation of condensed bodies are presented. The distribution functions of particles of a body by energies and by the intensity of their transition from one energy level to another in the process of evaporation have been obtained based on the law of spectral-radiation intensity of the body particles. The temperature dependence of the resulting vapor flow on the outer surface of a massive condensed body and a thin layer in equilibrium and nonequilibrium states, which, in the limit, transforms to the known Hertz-Knudsen formula, has been found. Institute of Technical Thermal Physics, National Academy of Sciences of Ukraine, Kiev, Ukraine; email: yaroslav@interpharm.kiev.ua. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 75, No. 3, pp. 128-134, May-June, 2002. Original article submitted June 11, 2001. JEPTER74920200214 JEPTER7492014