Doubly Degenerate Diffuse Interface Models of Anisotropic Surface Diffusion
Numerical Analysis
2020-12-17 v2 Materials Science
Numerical Analysis
Computational Physics
Abstract
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.
Keywords
Cite
@article{arxiv.2004.08712,
title = {Doubly Degenerate Diffuse Interface Models of Anisotropic Surface Diffusion},
author = {Marco Salvalaglio and Maximilian Selch and Axel Voigt and Steven M. Wise},
journal= {arXiv preprint arXiv:2004.08712},
year = {2020}
}
Comments
15 pages; 6 figures