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arXiv · 2111.11197

A finite element based Heterogeneous Multiscale Method for the Landau-Lifshitz equation

Lena Leitenmaier·Murtazo Nazarov
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Abstract

We present a Heterogeneous Multiscale Method for the Landau-Lifshitz equation with a highly oscillatory diffusion coefficient, a simple model for a ferromagnetic composite. A finite element macro scheme is combined with a finite difference micro model to approximate the effective equation corresponding to the original problem. This makes it possible to obtain effective solutions to problems with rapid material variations on a small scale, described by $\varepsilon \ll 1$, which would be too expensive to resolve in a conventional simulation.

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Lena Leitenmaier, Murtazo Nazarov. 2021-11-22. A finite element based Heterogeneous Multiscale Method for the Landau-Lifshitz equation. https://arxiv.org/abs/2111.11197

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