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Injecting a Liquid in Weightlessness: Droplet or Geyser Formation

Steven H. Collicott

Steven H. Collicott

School of Aeronautics and Astronautics, Purdue UniversityWest Lafayette,
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Collicott, Steven H.
 y 
Kyle D. Kennedy

Kyle D. Kennedy

ElectroimpactMukilteo,
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Kennedy, Kyle D.
  
20 jul 2020
Injecting a Liquid in Weightlessness: Droplet or Geyser Formation's Cover Image
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Categoría del artículo: Research Article
Publicado en línea: 20 jul 2020
Páginas: 35 - 40
DOI: https://doi.org/10.2478/gsr-2017-0003
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© 2017 Steven H. Collicott et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Figure 1

Droplet and geyser geometries – light gray is the liquid, dark gray is the solid. White background is the air. Sharp orifice rims are shown here; see below for the bluntness types examined in the present research.
Droplet and geyser geometries – light gray is the liquid, dark gray is the solid. White background is the air. Sharp orifice rims are shown here; see below for the bluntness types examined in the present research.

Figure 2

Droplet (left) and geyser (right) images from flight test of 0.48 cm diameter orifices (the two images are presented at the same scale). The small droplets in the foreground of the right image are residues of a test during a previous parabola and are in the fields of view but are not interacting with the hole or the jet.
Droplet (left) and geyser (right) images from flight test of 0.48 cm diameter orifices (the two images are presented at the same scale). The small droplets in the foreground of the right image are residues of a test during a previous parabola and are in the fields of view but are not interacting with the hole or the jet.

Figure 3

Injection hole edge conditions. In this geometry, the liquid flow, when present, was upwards from the hole.
Injection hole edge conditions. In this geometry, the liquid flow, when present, was upwards from the hole.

Figure 4

Photograph of experiment bolted to the floor on board the 727 of the Zero-G Corporation. The transparent box in the left half of the frame is the second level of containment around the test sections.
Photograph of experiment bolted to the floor on board the 727 of the Zero-G Corporation. The transparent box in the left half of the frame is the second level of containment around the test sections.

Figure 5

Experiment components, initial condition. One fluid system is shown in this view; there are two additional systems, identical except for the orifice size or rim shape, behind this system.
Experiment components, initial condition. One fluid system is shown in this view; there are two additional systems, identical except for the orifice size or rim shape, behind this system.

Figure 6

All of the data from four holes over two flights.
All of the data from four holes over two flights.
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Ciencias de la vida, Ciencias de la vida, otros, Ciencia de los materiales, Ciencia de los materiales, otros, Física, Física, otros
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