Dynamics of Conformal Maps for a Class of Non-Laplacian Growth Phenomena

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dc.creatorBazant, Martin Z.
dc.creatorChoi, Jaehyuk
dc.creatorDavidovitch, Benny
dc.date2003-03-12
dc.date.accessioned2026-07-07T02:50:09Z
dc.date.available2026-07-07T02:50:09Z
dc.descriptionTime-dependent conformal maps are used to model a class of growth phenomena limited by coupled non-Laplacian transport processes, such as nonlinear diffusion, advection, and electro-migration. Both continuous and stochastic dynamics are described by generalizing conformal-mapping techniques for viscous fingering and diffusion-limited aggregation, respectively. A general notion of time in stochastic growth is also introduced. The theory is applied to simulations of advection-diffusion-limited aggregation in a background potential flow. A universal crossover in morphology is observed from diffusion-limited to advection-limited fractal patterns with an associated crossover in the growth rate, controlled by a time-dependent effective Peclet number. Remarkably, the fractal dimension is not affected by advection, in spite of dramatic increases in anisotropy and growth rate, due to the persistence of diffusion limitation at small scales.
dc.description4 pages, 2 figures (six color plates)
dc.identifierhttps://arxiv.org/abs/cond-mat/0303234
dc.identifierhttp://arxiv.org/abs/cond-mat/0303234
dc.identifierdoi:10.1103/PhysRevLett.91.045503
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21012
dc.subjectStatistical Mechanics
dc.subjectSoft Condensed Matter
dc.titleDynamics of Conformal Maps for a Class of Non-Laplacian Growth Phenomena
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