A numerical approach for fluid deformable surfaces with conserved enclosed volume

Research output: Contribution to journalResearch articleContributedpeer-review

Abstract

We consider surface finite elements and a semi-implicit time stepping scheme to simulate fluid deformable surfaces. Such surfaces are modeled by incompressible surface Navier-Stokes equations with bending forces. Here, we consider closed surfaces and enforce conservation of the enclosed volume. The numerical approach builds on higher order surface parameterizations, a Taylor-Hood element for the surface Navier-Stokes part, appropriate approximations of the geometric quantities of the surface, mesh redistribution and a Lagrange multiplier for the constraint. The considered computational examples highlight the solid-fluid duality of fluid deformable surfaces and demonstrate convergence properties that are known to be optimal for different sub-problems.

Details

Original languageEnglish
Article number112097
JournalJournal of computational physics
Volume486
Publication statusPublished - 1 Aug 2023
Peer-reviewedYes

External IDs

Scopus 85153488053
WOS 000987895700001

Keywords

DFG Classification of Subject Areas according to Review Boards

Keywords

  • Fluid deformable surface, Isoparametric setting, Surface finite element method, Surface Navier-Stokes equation, Taylor-Hood element, Taylor -Hood element