Title
Multiphase mean curvature flows with high mobility contrasts: A phase-field approach, with applications to nanowires.
Abstract
The structure of many multiphase systems is governed by an energy that penalizes the area of interfaces between phases weighted by surface tension coefficients. However, interface evolution laws depend also on interface mobility coefficients. Having in mind some applications where highly contrasted or even degenerate mobilities are involved, for which classical phase field models are inapplicable, we propose a new effective phase field approach to approximate multiphase mean curvature flows with mobilities. The key aspect of our model is to incorporate the mobilities not in the phase field energy (which is conventionally the case) but in the metric which determines the gradient flow. We show the consistency of such an approach by a formal analysis of the sharp interface limit. We also propose an efficient numerical scheme which allows us to illustrate the advantages of the model on various examples, as the wetting of droplets on solid surfaces or the simulation of nanowires growth generated by the so-called vapor–liquid–solid method.
Year
DOI
Venue
2018
10.1016/j.jcp.2018.02.051
Journal of Computational Physics
Keywords
Field
DocType
Multiphase systems,Mean curvature flow,Mobilities,Phase field,Droplets wetting,Nanowires
Degenerate energy levels,Surface tension,Mathematical optimization,Wetting,Mean curvature,Phase field models,Balanced flow,Drop (liquid),Mathematics,Nanowire
Journal
Volume
ISSN
Citations 
365
0021-9991
0
PageRank 
References 
Authors
0.34
3
4
Name
Order
Citations
PageRank
Elie Bretin1143.58
Alexandre Danescu200.34
j penuelas300.68
Simon Masnou41249.26