Abstract

Abstract A parametric study of the fundamental exchange processes for energy, mass and momentum between the liquid and gas phase of vaporizing, multicomponent-liquid droplets is presented. The applicable model, which examines an isolated, vaporizing, multicomponent droplet in a laminar, axisymmetric, convective environment, considers the different volatilities of the liquid components, the alteration of the liquid-phase properties due to the spatial/temporal variations of the species concentrations and also the effects of multicomponent gaseous diffusion. In addition, the model accounts for variable thermophysical properties, surface blowing and droplet surface regression due to vaporization, transient droplet heating with internal liquid circulation, and finally, droplet deceleration with respect to the free flow due to drag. The numerical calculation employs finite-difference techniques and an iterative solution procedure that provides time-varying spatially-resolved data for both phases. The effects of...

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