Experimental visualization of flow in a Ranque-Hilsch vortex tube (air, low-pressure regime dataset)

This dataset provides a reference scenario for experimental flow visualization inside a Ranque-Hilsch vortex tube (RHVT) under low-pressure conditions. The experiment was performed using a transparent acrylic RHVT, aerosol seeding (DEHS), laser sheet illumination, and a high-speed Phantom VEO 640L camera with a macro photo lens. The dataset includes a compressed preview (.mp4), selected frames (.tiff), input parameters (.xlsx), metadata (.json), documentation of the experimental setup and methodology (PDF, PNG), and an example processing script. The purpose of this dataset is to illustrate the experimental procedure and enable reproducibility of the research methodology.