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- W2995912921 abstract "Various Cahn–Hilliard (CH) energy functionals have been introduced to model phase separation in multi-component system. Mathematically consistent models have highly nonlinear terms linked together, thus it is not well-known how to split this type of energy. In this paper, we propose a new convex splitting and a constrained Convex Splitting (cCS) scheme based on the splitting. We show analytically that the cCS scheme is mass conserving and satisfies the partition of unity constraint at the next time level. It is uniquely solvable and energy stable. Furthermore, we combine the convex splitting with the specially designed implicit–explicit Runge–Kutta method to develop a high-order (up to third-order) cCS scheme for the multi-component CH system. We also show analytically that the high-order cCS scheme is unconditionally energy stable. Numerical experiments with ternary and quaternary systems are presented, demonstrating the accuracy, energy stability, and capability of the proposed high-order cCS scheme." @default.
- W2995912921 created "2019-12-26" @default.
- W2995912921 creator A5041950581 @default.
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- W2995912921 date "2019-12-16" @default.
- W2995912921 modified "2023-10-11" @default.
- W2995912921 title "A High-Order Convex Splitting Method for a Non-Additive Cahn–Hilliard Energy Functional" @default.
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- W2995912921 doi "https://doi.org/10.3390/math7121242" @default.
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