Lattice Boltzmann simulations of melting in a rectangular cavity heated\n locally from below at high Rayleigh number

2019/09/28 by Yong Gang Zhao, Zhao, Yong, Yao Wu +6
Computer Science · Engineering · #Computational Physics (physics.comp-ph) #FOS: Physical sciences #Generative Adversarial Networks and Image Synthesis #Lattice Boltzmann Simulation Studies #Phase Change Materials Research

paper · pdf · doi:10.48550/arxiv.1909.13086

openalex publication_date 2019/09/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

This work presented a block triple-relaxation-time (B-TriRT) lattice\nBoltzmann model for simulating melting in a rectangular cavity heated from\nbelow at high Rayleigh (Ra) number (Ra = 108). The test of benchmark problem\nshows that present B-TriRT can dramatically reduce the numerical diffusion\nacross the phase interface. In addition, the influences of the location of the\nheated region are investigated. The results indicate that the location of\nheated region plays an essential role in melting rate and the full melting\noccur earliest when the heated region is located in the middle region.\n

Citations

• A general multiple-relaxation-time lattice Boltzmann model for nonlinear anisotropic convection-diffusion equations

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