The Sharp Interface Limit of a Navier-Stokes/Allen-Cahn System with Constant Mobility: Convergence Rates by a Relative Energy Approach
The Sharp Interface Limit of a Navier-Stokes/Allen-Cahn System with Constant Mobility: Convergence Rates by a Relative Energy Approach
复制标题
具有恒定移动性的 Navier-Stokes/Allen-Cahn 系统的尖锐界面极限:通过相对能量方法得出的收敛率
DOI:
10.1137/22m1500587
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Yuning Liu
中科院分区:
文献类型:
--
作者:
S. Hensel;Yuning Liu
We investigate the sharp interface limit of a diffuse interface system that couples the Allen--Cahn equation with the instationary Navier--Stokes system in a bounded domain in $\mathbb{R}^d$ with $d \in \{2,3\}$. This model is used to describe a propagating front in a viscous incompressible flow with the width of the transition layer being characterized by a small parameter $\varepsilon>0$. We show that the solutions converge to a limit two-phase fluid system with surface tension that couples the mean curvature flow and the Navier--Stokes system. The main assumptions are that the evolution of the limit system is sufficiently regular and that the associated evolving interface does not intersect the boundary of the container. For quantitatively well-prepared initial data, we even establish an optimal convergence rate. This is the first rigorous result of this kind which is valid in all physically relevant ambient dimensions.
影响因子:
1.3
作者:
H. Abels;A. Marquardt
通讯作者:
A. Marquardt
影响因子:
1.4
作者:
M. Köhne;J. Prüss;M. Wilke
通讯作者:
M. Wilke