A Sharp Phase Field Method
Computational Physics
2018-07-18 v4 Mesoscale and Nanoscale Physics
Abstract
Phase field modelling offers an extremely general framework to predict microstructural evolutions in complex systems. However, its computational implementation requires a discretisation scheme with a grid spacing small enough to preserve the continuous character of the theory. We present here a new formulation, which is intrinsically discrete, in which the interfaces are resolved with essentially one grid point with no pinning on the grid and an accurate rotational invariance, improving drastically the numerical capabilities of the method. We show that interfacial kinetic properties are reproduced with a high accuracy. Finally, we apply the model to a situation where conserved and non-conserved fields are coupled.
Cite
@article{arxiv.1803.06238,
title = {A Sharp Phase Field Method},
author = {Alphonse Finel and Yann Le Bouar and Benoît Dabas and Benoît Appolaire},
journal= {arXiv preprint arXiv:1803.06238},
year = {2018}
}