Abstract

New experimental data on superheated water atomization are presented. It is shown that the new nozzle design with expanding relatively long duct provides droplet size distributions which differs much from those in the case of short conic nozzles (at the same inlet temperatures). Mass fraction of submicron mode is significantly greater – up to practically mono- modal submicron distribution. The new method of result data treatment is proposed. According to it the submicron mass fraction is function of dimensionless parameter, which is the vapor clusters surface tension ratio to chemical potential of “explosive” phase transformation.

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