Experimental quantification of partial melting in a single frozen drop

Sihong Yan, Jose Palacios

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The visualization and quantification of the melting process of a single frozen droplet was conducted. Luminescent dye and high-speed camera visualization were used to monitor the partial melting state of an ultrasonically levitated frozen drop exposed to warm environments. Rhodamine B was dissolved (0.01% mass fraction) in the water used to create a droplet. The Droplet was placed at the node of the wave created by the acoustic levitator and frozen via convective cooling. When the cold air flow was turned off, the partial melting of the droplet began. Water droplets with a diameter ranging approximately between 300μm to 1800μm were tested. Four environmental melting temperatures were tested: 5°C, 15°C, 25°C and 35°C. A laser beam was pointed at the partially melted drop to enhance the luminesce behavior of the Rhodamine B molecules in the water. The luminescence of the ink in the melted water allowed for the discretization between frozen ice and melted water. The variation of percentage of partial melting of the drop with time was recorded. The correlation between the rate of melting, environmental temperature, and diameter of the frozen droplets is reported and discussed in this paper. It is confirmed that the time rate of melting is inversely proportional to the diameter of the ice crystals and directly proportional to the environmental temperature. An empirical fit to predict the percentage of partial melting with respect to temperature and droplet diameter was experimentally acquired.

Original languageEnglish (US)
Title of host publication8th AIAA Atmospheric and Space Environments Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624104336
StatePublished - Jan 1 2016
Event8th AIAA Atmospheric and Space Environments Conference, 2016 - Washington, United States
Duration: Jun 13 2016Jun 17 2016

Publication series

Name8th AIAA Atmospheric and Space Environments Conference

Other

Other8th AIAA Atmospheric and Space Environments Conference, 2016
CountryUnited States
CityWashington
Period6/13/166/17/16

Fingerprint

droplet
partial melting
melting
water
rhodamine
visualization
ambient temperature
temperature
ice
ice crystal
cold air
luminescence
high speed cameras
inks
air flow
airflow
dye
acoustics
laser
cooling

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Atmospheric Science

Cite this

Yan, S., & Palacios, J. (2016). Experimental quantification of partial melting in a single frozen drop. In 8th AIAA Atmospheric and Space Environments Conference (8th AIAA Atmospheric and Space Environments Conference). American Institute of Aeronautics and Astronautics Inc, AIAA.
Yan, Sihong ; Palacios, Jose. / Experimental quantification of partial melting in a single frozen drop. 8th AIAA Atmospheric and Space Environments Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, 2016. (8th AIAA Atmospheric and Space Environments Conference).
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abstract = "The visualization and quantification of the melting process of a single frozen droplet was conducted. Luminescent dye and high-speed camera visualization were used to monitor the partial melting state of an ultrasonically levitated frozen drop exposed to warm environments. Rhodamine B was dissolved (0.01{\%} mass fraction) in the water used to create a droplet. The Droplet was placed at the node of the wave created by the acoustic levitator and frozen via convective cooling. When the cold air flow was turned off, the partial melting of the droplet began. Water droplets with a diameter ranging approximately between 300μm to 1800μm were tested. Four environmental melting temperatures were tested: 5°C, 15°C, 25°C and 35°C. A laser beam was pointed at the partially melted drop to enhance the luminesce behavior of the Rhodamine B molecules in the water. The luminescence of the ink in the melted water allowed for the discretization between frozen ice and melted water. The variation of percentage of partial melting of the drop with time was recorded. The correlation between the rate of melting, environmental temperature, and diameter of the frozen droplets is reported and discussed in this paper. It is confirmed that the time rate of melting is inversely proportional to the diameter of the ice crystals and directly proportional to the environmental temperature. An empirical fit to predict the percentage of partial melting with respect to temperature and droplet diameter was experimentally acquired.",
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Yan, S & Palacios, J 2016, Experimental quantification of partial melting in a single frozen drop. in 8th AIAA Atmospheric and Space Environments Conference. 8th AIAA Atmospheric and Space Environments Conference, American Institute of Aeronautics and Astronautics Inc, AIAA, 8th AIAA Atmospheric and Space Environments Conference, 2016, Washington, United States, 6/13/16.

Experimental quantification of partial melting in a single frozen drop. / Yan, Sihong; Palacios, Jose.

8th AIAA Atmospheric and Space Environments Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, 2016. (8th AIAA Atmospheric and Space Environments Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - The visualization and quantification of the melting process of a single frozen droplet was conducted. Luminescent dye and high-speed camera visualization were used to monitor the partial melting state of an ultrasonically levitated frozen drop exposed to warm environments. Rhodamine B was dissolved (0.01% mass fraction) in the water used to create a droplet. The Droplet was placed at the node of the wave created by the acoustic levitator and frozen via convective cooling. When the cold air flow was turned off, the partial melting of the droplet began. Water droplets with a diameter ranging approximately between 300μm to 1800μm were tested. Four environmental melting temperatures were tested: 5°C, 15°C, 25°C and 35°C. A laser beam was pointed at the partially melted drop to enhance the luminesce behavior of the Rhodamine B molecules in the water. The luminescence of the ink in the melted water allowed for the discretization between frozen ice and melted water. The variation of percentage of partial melting of the drop with time was recorded. The correlation between the rate of melting, environmental temperature, and diameter of the frozen droplets is reported and discussed in this paper. It is confirmed that the time rate of melting is inversely proportional to the diameter of the ice crystals and directly proportional to the environmental temperature. An empirical fit to predict the percentage of partial melting with respect to temperature and droplet diameter was experimentally acquired.

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Yan S, Palacios J. Experimental quantification of partial melting in a single frozen drop. In 8th AIAA Atmospheric and Space Environments Conference. American Institute of Aeronautics and Astronautics Inc, AIAA. 2016. (8th AIAA Atmospheric and Space Environments Conference).