A thread-safe lattice Boltzmann model for multicomponent turbulent jet simulations on GPUs.

We employ an optimized multicomponent lattice Boltzmann (LB) model to simulate axisymmetric turbulent jets of a fluid in a stationary, immiscible environment over a broad spectrum of dynamic conditions. The implementation of the multicomponent LB code on graphic processing units (GPUs) achieves peak performance with a notable reduction in memory usage. It preserves the algorithmic simplicity characteristic of standard LB computing and, being based on a high-order extension of the thread-safe LB algorithm, allows for stable simulations at extremely low viscosities. This proposed method offers promising prospects for high-performance computing simulations of realistic turbulent flows with interfaces on GPU-based architectures.