New artificial tangential motions for parametric finite element approximation of surface evolution

B Duan, B Li - SIAM Journal on Scientific Computing, 2024 - SIAM
A new class of parametric finite element methods, with a new type of artificial tangential
velocity constructed at the continuous level, is proposed for solving surface evolution under …

A structure-preserving parametric finite element method for surface diffusion

W Bao, Q Zhao - SIAM Journal on Numerical Analysis, 2021 - SIAM
We propose a structure-preserving parametric finite element method (SP-PFEM) for
discretizing the surface diffusion of a closed curve in two dimensions (2D) or a surface in …

Evolving finite element methods with an artificial tangential velocity for mean curvature flow and Willmore flow

J Hu, B Li - Numerische Mathematik, 2022 - Springer
An artificial tangential velocity is introduced into the evolving finite element methods for
mean curvature flow and Willmore flow proposed by Kovács et al.(Numer Math 143 (4), 797 …

A symmetrized parametric finite element method for anisotropic surface diffusion in three dimensions

W Bao, Y Li - SIAM Journal on Scientific Computing, 2023 - SIAM
We extend the symmetrized parametric finite method for the evolution of a closed curve
under anisotropic surface diffusion in two dimensions, recently proposed by us [W. Bao, W …

A new approach to the analysis of parametric finite element approximations to mean curvature flow

G Bai, B Li - Foundations of Computational Mathematics, 2024 - Springer
Parametric finite element methods have achieved great success in approximating the
evolution of surfaces under various different geometric flows, including mean curvature flow …

Volume-preserving parametric finite element methods for axisymmetric geometric evolution equations

W Bao, H Garcke, R Nürnberg, Q Zhao - Journal of Computational Physics, 2022 - Elsevier
We propose and analyze volume-preserving parametric finite element methods for surface
diffusion, conserved mean curvature flow and an intermediate evolution law in an …

A symmetrized parametric finite element method for anisotropic surface diffusion of closed curves

W Bao, W Jiang, Y Li - SIAM Journal on Numerical Analysis, 2023 - SIAM
We deal with a long-standing problem about how to design an energy-stable numerical
scheme for solving the motion of a closed curve under anisotropic surface diffusion with a …

A convergent evolving finite element algorithm for Willmore flow of closed surfaces

B Kovács, B Li, C Lubich - Numerische Mathematik, 2021 - Springer
A proof of convergence is given for a novel evolving surface finite element semi-
discretization of Willmore flow of closed two-dimensional surfaces, and also of surface …

Dynamics of small solid particles on substrates of arbitrary topography

Q Zhao, W Jiang, Y Wang, DJ Srolovitz, T Qian, W Bao - Acta Materialia, 2024 - Elsevier
We study the dynamics of a small solid particle arising from the dewetting of a thin film on a
curved substrate driven by capillarity, where mass transport is controlled by surface …

A second-order in time, BGN-based parametric finite element method for geometric flows of curves

W Jiang, C Su, G Zhang - Journal of Computational Physics, 2024 - Elsevier
Over the last two decades, the field of geometric curve evolutions has attracted significant
attention from scientific computing. One of the most popular numerical methods for solving …