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<p>In this paper, the thermal hysteretic behavior of phase change material during solid-liquid transition is unprecedentedly modeled with an enthalpy-based lattice <span>Boltzmann</span> method. The thermal hysteresis is constructed using the sign of the enthalpy evolution to determine if the phase change material undergoes solidification or melting. The interaction between solid and fluid was treated by the partially saturated method. The suggested method is firstly validated on <span>Stefan</span> problems and the convection Gallium melting in a squared cavity with and without hysteresis loop allowed. Results obtained offer small errors compared to analytical results, thus open opportunities to explore new physical simulations with hysteretic phase change using lattice <span>Boltzmann</span> method.</p>

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Hysteresis effect using an enthalpy-based lattice-Boltzmann model

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月18日

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  • Yann Bouchereau,
  • Romain Noël,
  • Henning Müller,
  • Clément Rigal,
  • Ralf Müller

摘要

In this paper, the thermal hysteretic behavior of phase change material during solid-liquid transition is unprecedentedly modeled with an enthalpy-based lattice Boltzmann method. The thermal hysteresis is constructed using the sign of the enthalpy evolution to determine if the phase change material undergoes solidification or melting. The interaction between solid and fluid was treated by the partially saturated method. The suggested method is firstly validated on Stefan problems and the convection Gallium melting in a squared cavity with and without hysteresis loop allowed. Results obtained offer small errors compared to analytical results, thus open opportunities to explore new physical simulations with hysteretic phase change using lattice Boltzmann method.