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arXiv · 1804.08923

Color-gradient lattice Boltzmann model with nonorthogonal central moments: Hydrodynamic melt-jet breakup simulations

Shimpei Saito·Alessandro De Rosis·Alessio Festuccia·Akiko Kaneko·Yutaka Abe·Kazuya Koyama
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Abstract

We develop a lattice Boltzmann (LB) model for immiscible two-phase flow simulations with central moments (CMs). This successfully combines a three-dimensional nonorthogonal CM-based LB scheme [A. De Rosis, Phys. Rev. E 95, 013310 (2017)] with our previous color-gradient LB model [S. Saito, Y. Abe, and K. Koyama, Phys. Rev. E 96, 013317 (2017)]. Hydrodynamic melt-jet breakup simulations show that the proposed model is significantly more stable, even for flow with extremely high Reynolds numbers, up to $O(10^6)$. This enables us to investigate the phenomena expected under actual reactor conditions.

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Shimpei Saito, Alessandro De Rosis, Alessio Festuccia, Akiko Kaneko, Yutaka Abe, Kazuya Koyama. 2018-06-11. Color-gradient lattice Boltzmann model with nonorthogonal central moments: Hydrodynamic melt-jet breakup simulations. https://doi.org/10.1103/physreve.98.013305

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