Mathematics Colloquia and Seminars
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Mathematical Modeling of Snow Crystal GrowthPDE and Applied Math Seminar
|Speaker: ||Janko Gravner, UC Davis|
|Location: ||1147 MSB|
|Start time: ||Tue, Nov 17 2009, 4:10PM|
The talk will describe a mesoscopic algorithm for snow crystal formation based on physical principles.
The model combines diffusion limited growth with anisotropic attachment kinetics. Aggregation is regulated by an
idealized semi-liquid layer. Our scheme, motivated by a particle system representation of a suitable Stefan problem,
attempts to mimic the snowflake's hydrodynamics. This is apparently the first approach that successfully captures
most aspects of real snow crystal growth. This is joint work with David Griffeath (Univ. of Wisconsin).