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Thermal Shock as an Ice Multiplication Mechanism. Part I. Theory

King, W. D.; Fletcher, Neville H.


Thermoelastic theory is used to calculate thermal stresses in ice crystals of idealized shapes when a small area on one surface is warmed to 0°C, in simulation of riming of the crystal by a cloud droplet. It is shown that a typical riming event involving a 20 μm diameter droplet impinging on a 500 μm plate or column would need to occur at a temperature colder than −35°C before fracture could be expected. For a given ice crystal size, the thermal stresses increase with droplet diameter, and thin...[Show more]

CollectionsANU Research Publications
Date published: 1976
Type: Journal article
Source: Journal of the Atmospheric Sciences
DOI: 10.1175/1520-0469(1976)033<0085:TSAAIM>2.0.CO;2


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