Evaporative cooling of microscopic water droplets in vacuo: Molecular dynamics simulations and kinetic gas theory | Zendy

Daniel Schlesinger | Zendy; Jonas A. Sellberg | Zendy; Anders Nilsson | Zendy; Lars G. M. Pettersson | Zendy

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Evaporative cooling of microscopic water droplets in vacuo: Molecular dynamics simulations and kinetic gas theory

Author(s) -

Daniel Schlesinger,

Jonas A. Sellberg,

Anders Nilsson,

Lars G. M. Pettersson

Publication year - 2016

Publication title -

the journal of chemical physics

Language(s) - English

Resource type - Journals

eISSN - 1089-7690

pISSN - 0021-9606

DOI - 10.1063/1.4944387

Subject(s) - knudsen number , evaporation , kinetic theory , kinetic energy , evaporative cooler , thermodynamics , knudsen flow , molecular dynamics , chemistry , materials science , mechanics , physics , classical mechanics , computational chemistry

In the present study, we investigate the process of evaporative cooling of nanometer-sized droplets in vacuum using molecular dynamics simulations with the TIP4P/2005 water model. The results are compared to the temperature evolution calculated from the Knudsen theory of evaporation which is derived from kinetic gas theory. The calculated and simulation results are found to be in very good agreement for an evaporation coefficient equal to unity. Our results are of interest to experiments utilizing droplet dispensers as well as to cloud micro-physics.

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