Numerical analysis of the interactions between evaporating droplets in a monodisperse stream |
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Authors: | Bruno Frackowiak Gérard Lavergne Cameron Tropea Alain Strzelecki |
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Affiliation: | 1. National Research Tomsk Polytechnic University, Institute of Power Engineering, 30, Lenin Avenue, Tomsk, 634050, Russia;2. Université Libre de Bruxelles, 50, avenue F.D. Roosevelt, Brussels, 1050, Belgium |
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Abstract: | A numerical simulation of evaporation in a monodisperse droplet stream is proposed, taking into account the transient state of the evaporation, and the non-uniform mass and heat transfer coefficients on the droplet surface. These investigations emphasize the strong interaction effects between closely spaced droplets in a dense spray, reducing significantly the transfer coefficients. Moreover, the Marangoni force becomes more significant than the viscous force, driving the internal motion of the droplet and affecting the temperature fields. Otherwise, a better understanding of the evaporation phenomenon around closely spaced droplets will help to refine the existing models used in dense sprays. |
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