A high-performance lattice Boltzmann model for multicomponent turbulent jet simulations
arxiv(2024)
摘要
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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