Frozen patterns of impacted droplets: From conical tips to toroidal shapes

Man Hu; Feng Wang; Qian Tao; Li Chen; Shmuel M. Rubinstein; Daosheng Deng

doi:10.1103/PhysRevFluids.5.081601

Frozen patterns of impacted droplets: From conical tips to toroidal shapes

Man Hu, Feng Wang, Qian Tao, Li Chen, Shmuel M. Rubinstein, Daosheng Deng^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

We report frozen ice patterns for the water droplets impacting on a cold substrate through high-speed images. These patterns can be manipulated by several physical parameters (the droplet size, falling height, and substrate temperature), and the scaling analysis has a remarkable agreement with the phase diagram. The observed double-concentric toroidal shape is attributed to the correlation between the impacting dynamics and freezing process, as confirmed by the spatiotemporal evolution of the droplet temperature, the identified timescale associated with the morphology and solidification (tinn≃τsol), and the ice front-advection model.

Original language	American English
Article number	081601
Journal	Physical Review Fluids
Volume	5
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevFluids.5.081601
State	Published - Aug 2020
Externally published	Yes

Bibliographical note

Funding Information:
This work was supported by the National Program in China and startup from Fudan University, the National Natural Science Foundation of China (No. 11704077), and the China Postdoctoral Science Foundation (No. 2018T110342). S.M.R. was partially supported by DOE-PNNL under Grant No. 428977.

Publisher Copyright:
© 2020 American Physical Society

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10.1103/PhysRevFluids.5.081601

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title = "Frozen patterns of impacted droplets: From conical tips to toroidal shapes",

abstract = "We report frozen ice patterns for the water droplets impacting on a cold substrate through high-speed images. These patterns can be manipulated by several physical parameters (the droplet size, falling height, and substrate temperature), and the scaling analysis has a remarkable agreement with the phase diagram. The observed double-concentric toroidal shape is attributed to the correlation between the impacting dynamics and freezing process, as confirmed by the spatiotemporal evolution of the droplet temperature, the identified timescale associated with the morphology and solidification (tinn≃τsol), and the ice front-advection model.",

author = "Man Hu and Feng Wang and Qian Tao and Li Chen and Rubinstein, {Shmuel M.} and Daosheng Deng",

note = "Funding Information: This work was supported by the National Program in China and startup from Fudan University, the National Natural Science Foundation of China (No. 11704077), and the China Postdoctoral Science Foundation (No. 2018T110342). S.M.R. was partially supported by DOE-PNNL under Grant No. 428977. Publisher Copyright: {\textcopyright} 2020 American Physical Society",

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AU - Wang, Feng

AU - Tao, Qian

AU - Chen, Li

AU - Rubinstein, Shmuel M.

AU - Deng, Daosheng

N1 - Funding Information: This work was supported by the National Program in China and startup from Fudan University, the National Natural Science Foundation of China (No. 11704077), and the China Postdoctoral Science Foundation (No. 2018T110342). S.M.R. was partially supported by DOE-PNNL under Grant No. 428977. Publisher Copyright: © 2020 American Physical Society

PY - 2020/8

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AB - We report frozen ice patterns for the water droplets impacting on a cold substrate through high-speed images. These patterns can be manipulated by several physical parameters (the droplet size, falling height, and substrate temperature), and the scaling analysis has a remarkable agreement with the phase diagram. The observed double-concentric toroidal shape is attributed to the correlation between the impacting dynamics and freezing process, as confirmed by the spatiotemporal evolution of the droplet temperature, the identified timescale associated with the morphology and solidification (tinn≃τsol), and the ice front-advection model.

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Frozen patterns of impacted droplets: From conical tips to toroidal shapes

Abstract

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