TRIP-TURB: Tracers & Inertial Particle Dynamics in Rotating and Non-Rotating Turbulence Dataset

This dataset provides a high-fidelity numerical resource for the study of particle-laden flow under homogeneous turbulence with and without rotation , generated using direct numerical simulations (DNS) in a triply periodic domain. The simulations resolve both the Eulerian carrier flow and the Lagrangian dynamics of dispersed point particles, enabling detailed investigation of particle transport, clustering, and trajectory geometry in rotating turbulent flows.All simulations are performed at a Taylor-scale Reynolds number of Re_λ=90. Three flow configurations are included: non-rotating homogeneous isotropic turbulence (HIT), moderately rotating turbulence at Rossby number Ro=1, and strongly rotating turbulence at Ro=0.1. For each flow condition, three particle populations are considered, spanning tracer and inertial regimes through different Stokes numbers (based on the Kolmogorov scale). In total, the dataset comprises nine distinct flow–particle configuration cases.The Eulerian component of the dataset consists of fully resolved three-dimensional velocity fields sampled during statistically stationary turbulence. The Lagrangian component comprises time-resolved particle data, including positions, velocities, and accelerations of sub-Kolmogorov point particles. For each case, the particle dataset includes an initial relaxation phase following particle injection, as well as a statistically steady regime in which clustering and anisotropic organisation are fully developed.All data are provided in HDF5 format, accompanied by XDMF metadata files to facilitate direct visualisation and post-processing with standard scientific tools. The dataset is organised hierarchically by flow configuration and particle case, with separate subfolders for Eulerian flow fields and Lagrangian particle data. Each case folder includes a README file detailing the governing parameters, dimensionless numbers, temporal sampling, and file organisation.In addition to raw simulation outputs, the dataset includes auxiliary scripts for post-processing and analysis. These scripts enable reconstruction of particle trajectories from the HDF5 particle files and extraction of two-dimensional slabs from three-dimensional Eulerian and Lagrangian fields, supporting reduced-dimensional analyses and visualisation workflows. Metadata files summarising simulation parameters and data contents are also provided to ensure reproducibility and ease of reuse.This dataset is intended as a benchmark resource for Eulerian–Lagrangian studies of rotating turbulence and particle transport. It is suitable for investigations of preferential concentration, dispersion, rotation-induced anisotropy, and multiscale particle organisation, as well as for the development and validation of reduced-order models, theoretical predictions, and data-driven approaches.