Linear Numerical Schemes for a $\textbf{Q}$-Tensor System for Nematic Liquid Crystals
Abstract
In this work, we present three linear numerical schemes to model nematic liquid crystals using the Landau-de Gennes -tensor theory. The first scheme is based on using a truncation procedure of the energy, which allows for an unconditionally energy stable first order accurate decoupled scheme. The second scheme uses a modified second order accurate optimal dissipation algorithm, which gives a second order accurate coupled scheme. Finally, the third scheme uses a new idea to decouple the unknowns from the second scheme which allows us to obtain accurate dynamics while improving computational efficiency. We present several numerical experiments to offer a comparative study of the accuracy, efficiency and the ability of the numerical schemes to represent realistic dynamics.
Keywords
Cite
@article{arxiv.2403.17289,
title = {Linear Numerical Schemes for a $\textbf{Q}$-Tensor System for Nematic Liquid Crystals},
author = {Justin Swain and Giordano Tierra},
journal= {arXiv preprint arXiv:2403.17289},
year = {2024}
}