A thread-safe, high-order lattice Boltzmann model with Allen-Cahn interface tracking is shown to reproduce bubble rising and droplet collision dynamics at density and viscosity ratios up to 1000 and 100.
A high-performance lattice Boltzmann model for multicomponent turbulent jet simulations
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abstract
In this work an optimized multicomponent lattice Boltzmann (LB) model is deployed to simulate axisymmetric turbulent jets of a fluid evolving in a quiescent, immiscible environment over a wide range of dynamic regimes. The implementation of the multicomponent lattice Boltzmann code achieves peak performances on graphic processing units with a significant reduction of the memory footprint, retains the algorithmic simplicity inherent to standard LB computing and being based on a high-order extension of the thread-safe lattice Boltzmann algorithm, it allows to perform stable simulations at vanishingly low viscosities. The proposed approach opens attractive prospects for high-performance computing simulations of realistic turbulent flows with interfaces on GPU-based architectures.
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physics.flu-dyn 1years
2025 1verdicts
CONDITIONAL 1representative citing papers
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Thread-safe multiphase lattice Boltzmann model for droplet and bubble dynamics at high density and viscosity contrasts
A thread-safe, high-order lattice Boltzmann model with Allen-Cahn interface tracking is shown to reproduce bubble rising and droplet collision dynamics at density and viscosity ratios up to 1000 and 100.