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An anisotropic heat diffusion coefficient is introduced in order to study some interfacial growth phenomena. This anisotropy has been incorporated in a phase field model which has been studied numerically to reproduce some fundamental solidification situations (needle crystal growth) as well as the dynamics of a nematic–smectic-B interface. As a general result, we find that dendrites grow faster in the lower heat diffusion direction. Simulation results are compared with experiments with remarkable qualitative agreement.
CitationGonzález Cinca, Ricardo [et al.]. Het diffusion anisotropy in dendritic growth: phase field simulations and experiments in liquid crystals. "Journal of Crystal Growth", 15 Octubre 1998, vol. 193, núm. 4, p. 712-719.
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