We investigate the temperature of nucleating and growing droplets using molecular dynamics simulations. We find that subcritically sized clusters tend to be colder than the bath temperature, while post-critically sized clusters are warmer. However, the average temperature of all clusters is found to be always higher than the bath temperature. Even though nucleation is highly sensitive to temperature, the results surprisingly show that the deviation of the cluster temperature from the bath temperature does not have a significant influence on the nucleation rate, the deviation being less than a factor of two.
Keywords Nucleation, temperature fluctuations, cluster temperature, carrier-gas, thermostats
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Wedekind, J., Reguera, D., Strey, R. (2007). The Temperature of Nucleating Droplets. In: O'Dowd, C.D., Wagner, P.E. (eds) Nucleation and Atmospheric Aerosols. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-6475-3_20
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DOI: https://doi.org/10.1007/978-1-4020-6475-3_20
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