论文标题
各向异性表面扩散的双重变性扩散界面模型
Doubly Degenerate Diffuse Interface Models of Anisotropic Surface Diffusion
论文作者
论文摘要
我们扩展了各向同性表面扩散的双重变性Cahn-Hilliard（DDCH）模型，该模型比经典的退化Cahn-Hilliard（DCH）模型更准确地近似近似值。我们考虑弱和强的各向异性，并在数值上证明了这些方法的能力。提出的模型为各向异性表面扩散提供了一种变异和能量耗散方法，从而实现了具有特定于材料特定参数的大规模模拟。
We extend the doubly degenerate Cahn-Hilliard (DDCH) models for isotropic surface diffusion, which yield more accurate approximations than classical degenerate Cahn-Hilliard (DCH) models, to the anisotropic case. We consider both weak and strong anisotropies and demonstrate the capabilities of the approach for these cases numerically. The proposed model provides a variational and energy dissipative approach for anisotropic surface diffusion, enabling large scale simulations with material-specific parameters.
