Mathematical Modeling of the Solid–Liquid Interface Propagation by the Boundary Integral Method with Nonlinear Liquidus Equation and Atomic Kinetics

نویسندگان

چکیده

In this paper, we derive the boundary integral equation (BIE), a single integrodifferential governing evolutionary behavior of interface function, paying special attention to nonlinear liquidus and atomic kinetics. As result, BIE is found for thermodiffusion problem binary melt crystallization with convection. Analyzing coupled selection criterion stationary dendritic growth in form parabolic cylinder, show that effects stemming from kinetics play decisive role. Namely, dendrite tip velocity diameter, respectively, become greater lower increasing deviation linear form. addition, can substantially change variations power exponent general, theory under consideration describes evolution curvilinear front, as well solid phase perturbations patterns undercooled melts at local equilibrium conditions (for low moderate Péclet numbers). our theory, combined unsteady criterion, determines non-stationary rate crystals diameter their vertices.

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ژورنال

عنوان ژورنال: Crystals

سال: 2022

ISSN: ['2073-4352']

DOI: https://doi.org/10.3390/cryst12111657