Study of Condensational Growth of Water Droplets by Optical Mie Scattering Spectroscopy
Optical Mie scattering technique is applied in the study of the growth of a single saline solution droplet. A quadrupole particle chamber is used to suspend a charged sodium chloride solution droplet in a water vapor environment. The droplet-vapor equilibrium is momentarily shifted by the heating effect of an infrared laser and the subsequent condensational growth of this droplet is monitored by means of right angle Mie scattering. Simultaneous mass and heat transfer processes are considered, and the mass accommodation coefficient for water is deduced.
KeywordsWater Droplet Solution Droplet Condensational Growth Simultaneous Mass Water Vapor Environment
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