Entropy-stable and energy-conservative fully-discrete finite element method for non-isothermal phase-field models

Fuente: arXiv
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Autori principali: Brunk, Aaron, Höhn, Dennis
Natura: Preprint
Pubblicazione: 2026
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author Brunk, Aaron
Höhn, Dennis
author_facet Brunk, Aaron
Höhn, Dennis
contents This work presents a conforming finite-element scheme for non-isothermal phase-field systems coupled to the incompressible Navier-Stokes equations. The proposed numerical scheme preserves entropy production and total energy conservation exactly by variable transformations using entropy as main variable instead of temperature. Convergence tests in space are conducted, and representative examples are provided to demonstrate the scheme's effectiveness.
format Preprint
id arxiv_https___arxiv_org_abs_2605_30559
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Entropy-stable and energy-conservative fully-discrete finite element method for non-isothermal phase-field models
Brunk, Aaron
Höhn, Dennis
Numerical Analysis
This work presents a conforming finite-element scheme for non-isothermal phase-field systems coupled to the incompressible Navier-Stokes equations. The proposed numerical scheme preserves entropy production and total energy conservation exactly by variable transformations using entropy as main variable instead of temperature. Convergence tests in space are conducted, and representative examples are provided to demonstrate the scheme's effectiveness.
title Entropy-stable and energy-conservative fully-discrete finite element method for non-isothermal phase-field models
topic Numerical Analysis
url https://arxiv.org/abs/2605.30559