Weak solutions and weak-strong uniqueness for a thermodynamically consistent phase-field model
Analysis of PDEs
2019-07-31 v1
Abstract
In this paper we prove the existence of weak solutions for a thermodynamically consistent phase-field model introduced in [26] in two and three dimensions of space. We use a notion of solution inspired by [18], where the pointwise internal energy balance is replaced by the total energy inequality complemented with a weak form of the entropy inequality. Moreover, we prove existence of local-in-time strong solutions and, finally, we show weak-strong uniqueness of solutions, meaning that every weak solution coincides with a local strong solution emanating from the same initial data, as long as the latter exists.
Cite
@article{arxiv.1907.12816,
title = {Weak solutions and weak-strong uniqueness for a thermodynamically consistent phase-field model},
author = {Robert Lasarzik and Elisabetta Rocca and Giulio Schimperna},
journal= {arXiv preprint arXiv:1907.12816},
year = {2019}
}