Stochastic phase field $\alpha$-Navier-Stokes vesicle-fluid interaction model
Abstract
We consider a stochastic perturbation of the phase field alpha-Navier-Stokes model with vesicle-fluid interaction. It consists in a system of nonlinear evolution partial differential equations modeling the fluid-structure interaction associated to the dynamics of an elastic vesicle immersed in a moving incompressible viscous fluid. This system of equations couples a phase-field equation -- for the interface between the fluid and the vesicle -- to the alpha-Navier-Stokes equation -- for the viscous fluid -- with an extra nonlinear interaction term, namely the bending energy. The stochastic perturbation is an additive space-time noise of trace class on each equation of the system. We prove the existence and uniqueness of solution in classical spaces of functions with estimates of non-linear terms and bending energy. It is based on a priori estimate about the regularity of solutions of finite dimensional systems, and tightness of the approximated solution.
Cite
@article{arxiv.1901.01335,
title = {Stochastic phase field $\alpha$-Navier-Stokes vesicle-fluid interaction model},
author = {Ludovic Goudenège and Luigi Manca},
journal= {arXiv preprint arXiv:1901.01335},
year = {2019}
}