Lagrangian stochastic model for the orientation of inertialess spheroidal particles in turbulent flows: An efficient numerical method for CFD approach

In this work, we propose a model for the orientation of inertialess spheroidal particles suspended in turbulent flows. This consists stochastic version Jeffery equation that can be included statistical Lagrangian description flow. It is compatible and coherent with turbulence models are widely used CFD codes simulation flow field practical large-scale applications. context, analyze numerical scheme based on splitting algorithm decouples dynamics into its main contributions: stretching rotation. We detail implementation an open-source software. weak strong convergence both global each sub-part. Subsequently, technique yields to highly efficient hybrid coupling pure probabilistic deterministic schemes. Various experiments were implemented results compared analytical predictions assess efficiency accuracy.