Dataset for Ultra-High-Speed visualization of spray breakup on a curved surface inside a medical jet nebulizer

RWTH Publications (RWTH Aachen)

Abstract

This dataset contains ultra-high-speed microscopy videos capturing the primary atomization and droplet-baffle impaction of a nebulizer under steady-state conditions. The images are recorded using a shadowgraphy setup consisting of a Kirana 5M camera and a SILUX640 laser (640 nm, 20 ns pulse duration) to visualize the liquid structures. All videos were recorded at a rate of 5,000,000 frames per second (5 Mfps). Each recording is limited to 180 frames, yielding a total capture duration of 36 microseconds per video. The dataset includes recordings from two optical configurations: an overview setup with a spatial resolution of 4.3 µm/pixel (3.97 x 3.30 mm FOV), and a high-resolution setup with a spatial resolution of 1.0 µm/pixel (0.92 x 0.77 mm FOV). The different positions with regard to the baffle position and a more detailed description of the setup can be found in the Readme file.

Authors 3

1. Henrik Schmitz Aachen

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen

2. Wilko Rohlfs Aachen

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen

3. Manuel Armin Reddemann Aachen

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen