Abstract

A recently developed liquid vaporization model for multicomponent droplets has been enhanced in order to study the effect of thermal radiation absorption in binary droplet vaporization. The possible coupling between radiation absorption and droplet microexplosion is also investigated. The results show that radiation absorption can influence droplet vaporization in combustion environments. In addition to this, the results serve to explain some experimental findings on microexplosion phenomena, such as the radial location of the onset of bubble formation. The vaporization model including radiation absorption also predicts the experimentally observed sparkle at the end of droplet combustion (flash vaporization).

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