Determination of mass and thermal accommodation coefficients from evolution of evaporating water droplet

M. Zientara; D. Jakubczyk; G. Derkachov; K. Kolwas; M. Kolwas

doi:10.1117/12.629535

1 June 2005 Determination of mass and thermal accommodation coefficients from evolution of evaporating water droplet

M. Zientara, D. Jakubczyk, G. Derkachov, K. Kolwas, M. Kolwas

Proceedings Volume 5849, Fifth Workshop on Atomic and Molecular Physics; (2005) https://doi.org/10.1117/12.629535
Event: Fifth Workshop on Atomic and Molecular Physics, 2004, Jurata, Poland

Abstract

Evaporation of a droplet of pure water several micrometers in size was investigated. The droplet was levitated in an electrodynamic trap placed in a small climatic chamber. The evolution of the droplet and the evolution dynamics was studied by analyzing the coherent light scattering patterns with the aid of Mie theory. A numerical model of droplet evolution incorporating the kinetic effects near the droplet surface was constructed. By applying this model to the experimental data the mass and thermal accommodation coefficients were determined to be α_C=0.12±0.02 and α_T= 0.65±0.09. This model enabled to find the droplet temperature evolution and the relative humidity in the droplet vicinity with high precision as well.

Citation Download Citation

M. Zientara, D. Jakubczyk, G. Derkachov, K. Kolwas, and M. Kolwas "Determination of mass and thermal accommodation coefficients from evolution of evaporating water droplet", Proc. SPIE 5849, Fifth Workshop on Atomic and Molecular Physics, (1 June 2005); https://doi.org/10.1117/12.629535

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