scholarly journals Comment on evidence for surface-initiated homogenous nucleation

2003 ◽  
Vol 3 (4) ◽  
pp. 3361-3372 ◽  
Author(s):  
J. E. Kay ◽  
V. Tsemekhman ◽  
B. Larson ◽  
M. Baker ◽  
B. Swanson
Keyword(s):  
Laboratory Experiments ◽  
Drop Size ◽  
Supercooled Water ◽  
Ice Nucleation ◽  
Surface Nucleation ◽  
Embryo Formation ◽  
Homogenous Nucleation ◽  
Atmospheric Data ◽  
Water Drops

Abstract. We investigate theoretical, laboratory, and atmospheric evidence for a recently proposed hypothesis: homogenous ice nucleation occurs at the surface, not in the volume, of supercooled water drops. Using existing thermodynamic arguments, laboratory experiments, and atmospheric data, we conclude that ice embryo formation at the surface cannot be confirmed or disregarded. Ice nucleation rates measured as a function of drop size in an air ambient could help distinguish between volume and surface nucleation rates.

scholarly journals Comment on evidence for surface-initiated homogeneous nucleation

2003 ◽  
Vol 3 (5) ◽  
pp. 1439-1443 ◽  
Author(s):  
J. E. Kay ◽  
V. Tsemekhman ◽  
B. Larson ◽  
M. Baker ◽  
B. Swanson
Keyword(s):  
Homogeneous Nucleation ◽  
Laboratory Experiments ◽  
Drop Size ◽  
Supercooled Water ◽  
Ice Nucleation ◽  
Surface Nucleation ◽  
Embryo Formation ◽  
Atmospheric Data ◽  
Water Drops

Abstract. We investigate theoretical, laboratory, and atmospheric evidence for a recently proposed hypothesis: homogeneous ice nucleation initiates at the surface, not in the volume, of supercooled water drops. Using existing thermodynamic arguments, laboratory experiments, and atmospheric data, we conclude that ice embryo formation at the surface cannot be confirmed or disregarded. Ice nucleation rates measured as a function of drop size in an air ambient could help distinguish between volume and surface nucleation rates.

A microfluidic apparatus for the study of ice nucleation in supercooled water drops

Lab on a Chip ◽  
2009 ◽  
Vol 9 (16) ◽  
pp. 2293 ◽  
Author(s):  
Claudiu A. Stan ◽  
Grégory F. Schneider ◽  
Sergey S. Shevkoplyas ◽  
Michinao Hashimoto ◽  
Mihai Ibanescu ◽  
...  
Keyword(s):  
Supercooled Water ◽  
Ice Nucleation ◽  
Water Drops

scholarly journals Laboratory evidence for volume-dominated nucleation of ice in supercooled water microdroplets

2004 ◽  
Vol 4 (3) ◽  
pp. 3077-3088 ◽  
Author(s):  
D. Duft ◽  
T. Leisner
Keyword(s):  
Supercooled Water ◽  
Ice Nucleation ◽  
Laboratory Evidence ◽  
Surface Nucleation ◽  
Electrodynamic Balance ◽  
Homogeneous Freezing

Abstract. We report on measurements of the rate of homogeneous ice nucleation in supercooled water microdroplets levitated in an electrodynamic balance. By comparison of the freezing probability for droplets of radius 49 µm and 19 µm, we are able to conclude that homogeneous freezing is a volume-proportional process and that surface nucleation might only be important, if at all, for much smaller droplets.

scholarly journals Nonthermal ice nucleation observed at distorted contact lines of supercooled water drops

2018 ◽  
Vol 97 (2) ◽  
Author(s):  
Fan Yang ◽  
Owen Cruikshank ◽  
Weilue He ◽  
Alex Kostinski ◽  
Raymond A. Shaw
Keyword(s):  
Supercooled Water ◽  
Ice Nucleation ◽  
Contact Lines ◽  
Water Drops

scholarly journals Laboratory evidence for volume-dominated nucleation of ice in supercooled water microdroplets

2004 ◽  
Vol 4 (7) ◽  
pp. 1997-2000 ◽  
Author(s):  
D. Duft ◽  
T. Leisner
Keyword(s):  
Supercooled Water ◽  
Ice Nucleation ◽  
Laboratory Evidence ◽  
Surface Nucleation ◽  
Electrodynamic Balance ◽  
Homogeneous Freezing

Abstract. We report on measurements of the rate of homogeneous ice nucleation in supercooled water microdroplets levitated in an electrodynamic balance. By comparison of the freezing probability for droplets of radius 49µm and 19µm, we are able to conclude that homogeneous freezing is a volume-proportional process and that surface nucleation might only be important, if at all, for much smaller droplets.

Supercooled Water Drops Do Not Freeze During Impact on Hybrid Janus Particle-Based Surfaces

2018 ◽  
Vol 31 (1) ◽  
pp. 112-123 ◽  
Author(s):  
Madeleine Schwarzer ◽  
Thomas Otto ◽  
Markus Schremb ◽  
Claudia Marschelke ◽  
Hisaschi T. Tee ◽  
...  
Keyword(s):  
Supercooled Water ◽  
Janus Particle ◽  
Water Drops

Toward a theory of the evolution of drop morphology and splintering by freezing

2021 ◽  
Author(s):  
Alexander Staroselsky ◽  
Ranadip Acharya ◽  
Alexander Khain
Keyword(s):  
Drop Size ◽  
Phase Field Model ◽  
Surface Fluxes ◽  
Freezing Process ◽  
Drop Surface ◽  
Surface Nucleation ◽  
Planar Front ◽  
Bulk Nucleation ◽  
Ice Shell

AbstractThe drop freezing process is described by a phase-field model. Two cases are considered: when the freezing is triggered by central nucleation and when nucleation occurs on the drop surface. Depending on the environmental temperature and drop size, different morphological structures develop. Detailed dendritic growth was simulated at the first stage of drop freezing. Independent of the nucleation location, a decrease in temperature within the range from ~ −5 to −25°C led to an increase in the number of dendrites and a decrease in their width and the interdendritic space. At temperatures lower than about −25°C, a planar front developed following surface nucleation, while dendrites formed a granular-like structure with small interdendritic distances following bulk nucleation. An ice shell grew in at the same time (but slower) as dendrites following surface nucleation, while it started forming once the dendrites have reached the drop surface in the case of central nucleation. The formed ice morphology at the first freezing stage predefined the splintering probability. We assume that stresses needed to break the ice shell arose from freezing of the water in the interdendritic spaces. Under this assumption, the number of possible splinters/fragments was proportional to the number of dendrites, and the maximum rate of splintering/fragmentation occurred within a temperature range of about −10 °C to −20°C, in agreement with available laboratory and in situ measurements. At temperatures < −25°C, freezing did not lead to the formation of significant stresses, making splintering unlikely. The number of dendrites increased with drop size, causing a corresponding increase in the number of splinters. Examples of morphology that favors drop cracking are presented, and the duration of the freezing stages is evaluated. Sensitivity of the freezing process to the surface fluxes is discussed.

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