This dataset contains numerical simulation results of airflow in a Ranque–Hilsch Vortex Tube (RHVT), obtained using high-fidelity transient simulations. The primary objective was to analyze the temperature separation phenomenon under unsteady flow conditions and to capture detailed turbulent structures inside the vortex tube.
The simulations were performed using a Large Eddy Simulation (LES) approach, enabling the resolution of large-scale turbulent eddies while modeling subgrid-scale effects. The computations were conducted in a time-dependent (transient) framework, allowing for detailed analysis of temporal fluctuations in velocity, pressure, and temperature fields.
Due to the high computational cost of LES, the simulations were accelerated using GPU-based high-performance computing (HPC) resources. This enabled efficient handling of fine spatial and temporal resolution required for accurate representation of vortex dynamics and energy separation processes.
The dataset includes case and data files containing full geometry, boundary conditions, solver setup, and time-resolved flow fields (temperature, velocity, pressure). Results provide insight into transient temperature separation between hot and cold outlets, evolution of coherent flow structures, and pressure distribution along the tube.
Although the simulations were conducted using advanced computational tools with GPU acceleration, the study can be reproduced using open-source software such as OpenFOAM, which supports LES modeling, compressible flow, and transient thermal analysis (with appropriate HPC configuration).
(2026-03)
