Icing Process of Supercooled-Water Droplet Moving on a Surface by Using Luminescent Temperature-Imaging Technique

Paper #:
  • 2013-01-2210

Published:
  • 2013-09-17
DOI:
  • 10.4271/2013-01-2210
Citation:
Tanaka, M., Morita, K., Kimura, S., and Sakaue, H., "Icing Process of Supercooled-Water Droplet Moving on a Surface by Using Luminescent Temperature-Imaging Technique," SAE Technical Paper 2013-01-2210, 2013, doi:10.4271/2013-01-2210.
Pages:
5
Abstract:
An icing process of a single supercooled-water droplet is focused in the present study. A stationary icing as well as an icing of a moving droplet gives us great insights into the development of an ice-prevention system for an engineering purpose. As an academic purpose, it gives experimental findings in a two-phase flow. To understand the icing process, we applied a luminescent imaging technique. It uses a temperature-sensitive luminophore and a temperature-insensitive luminophore to create the luminescent water. The luminescent outputs from these luminophores are simultaneously captured by a high-speed color camera. By simply taking a ratio, the temperature distribution can be extracted. In this paper, this imaging system is shown with its temperature characterization. An icing process of a stationary droplet is shown in this paper. Also, a current status of an icing process of a moving droplet is shown.
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