Abstract
Based on a numerical solution of the Navier–Stokes equations and the equations of
molecular kinetics, a complete computer model of a two-stage atomizer has been developed
for analytical spectrometry, consisting of a graphite crucible evaporator and a helical
atomizer. The model correctly takes into account the heating of the atomizer by an
electric current, the gas dynamics, and nonsteady-state thermal-exchange processes, as
well as the evaporation and condensation of the atoms of the test substance. The
developed model has been experimentally tested, and the results of the modelling agree
well with the experimental data.
© 2012 OSA
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