TY - JOUR
T1 - Frozen patterns of impacted droplets
T2 - From conical tips to toroidal shapes
AU - Hu, Man
AU - Wang, Feng
AU - Tao, Qian
AU - Chen, Li
AU - Rubinstein, Shmuel M.
AU - Deng, Daosheng
N1 - Publisher Copyright:
© 2020 American Physical Society
PY - 2020/8
Y1 - 2020/8
N2 - 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.
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.
UR - http://www.scopus.com/inward/record.url?scp=85092032128&partnerID=8YFLogxK
U2 - 10.1103/PhysRevFluids.5.081601
DO - 10.1103/PhysRevFluids.5.081601
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AN - SCOPUS:85092032128
SN - 2469-990X
VL - 5
JO - Physical Review Fluids
JF - Physical Review Fluids
IS - 8
M1 - 081601
ER -