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Revealing the origins of vortex cavitation in a Venturi tube by high speed X-ray imaging

Soyama, Hitoshi ; Liang, Xiaoyu ; Yashiro, Wataru ; Kajiwara, Kentaro ; Asimakopoulou, Eleni Myrto LU orcid ; Bellucci, Valerio ; Birnsteinova, Sarlota ; Giovanetti, Gabriele ; Kim, Chan and Kirkwood, Henry J. , et al. (2023) In Ultrasonics Sonochemistry 101.
Abstract

Hydrodynamic cavitation is useful in many processing applications, for example, in chemical reactors, water treatment and biochemical engineering. An important type of hydrodynamic cavitation that occurs in a Venturi tube is vortex cavitation known to cause luminescence whose intensity is closely related to the size and number of cavitation events. However, the mechanistic origins of bubbles constituting vortex cavitation remains unclear, although it has been concluded that the pressure fields generated by the cavitation collapse strongly depends on the bubble geometry. The common view is that vortex cavitation consists of numerous small spherical bubbles. In the present paper, aspects of vortex cavitation arising in a Venturi tube were... (More)

Hydrodynamic cavitation is useful in many processing applications, for example, in chemical reactors, water treatment and biochemical engineering. An important type of hydrodynamic cavitation that occurs in a Venturi tube is vortex cavitation known to cause luminescence whose intensity is closely related to the size and number of cavitation events. However, the mechanistic origins of bubbles constituting vortex cavitation remains unclear, although it has been concluded that the pressure fields generated by the cavitation collapse strongly depends on the bubble geometry. The common view is that vortex cavitation consists of numerous small spherical bubbles. In the present paper, aspects of vortex cavitation arising in a Venturi tube were visualized using high-speed X-ray imaging at SPring-8 and European XFEL. It was discovered that vortex cavitation in a Venturi tube consisted of angulated rather than spherical bubbles. The tangential velocity of the surface of vortex cavitation was assessed considering the Rankine vortex model.

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publishing date
type
Contribution to journal
publication status
published
subject
keywords
Bubble, Hydrodynamic cavitation, Vortex, X-ray imaging
in
Ultrasonics Sonochemistry
volume
101
article number
106715
publisher
Elsevier
external identifiers
  • pmid:38061251
  • scopus:85179001565
ISSN
1350-4177
DOI
10.1016/j.ultsonch.2023.106715
language
English
LU publication?
yes
id
5109b76d-efbb-4aff-9bab-42a47e1efeca
date added to LUP
2024-01-04 11:01:25
date last changed
2024-04-19 07:17:53
@article{5109b76d-efbb-4aff-9bab-42a47e1efeca,
  abstract     = {{<p>Hydrodynamic cavitation is useful in many processing applications, for example, in chemical reactors, water treatment and biochemical engineering. An important type of hydrodynamic cavitation that occurs in a Venturi tube is vortex cavitation known to cause luminescence whose intensity is closely related to the size and number of cavitation events. However, the mechanistic origins of bubbles constituting vortex cavitation remains unclear, although it has been concluded that the pressure fields generated by the cavitation collapse strongly depends on the bubble geometry. The common view is that vortex cavitation consists of numerous small spherical bubbles. In the present paper, aspects of vortex cavitation arising in a Venturi tube were visualized using high-speed X-ray imaging at SPring-8 and European XFEL. It was discovered that vortex cavitation in a Venturi tube consisted of angulated rather than spherical bubbles. The tangential velocity of the surface of vortex cavitation was assessed considering the Rankine vortex model.</p>}},
  author       = {{Soyama, Hitoshi and Liang, Xiaoyu and Yashiro, Wataru and Kajiwara, Kentaro and Asimakopoulou, Eleni Myrto and Bellucci, Valerio and Birnsteinova, Sarlota and Giovanetti, Gabriele and Kim, Chan and Kirkwood, Henry J. and Koliyadu, Jayanath C.P. and Letrun, Romain and Zhang, Yuhe and Uličný, Jozef and Bean, Richard and Mancuso, Adrian P. and Villanueva-Perez, Pablo and Sato, Tokushi and Vagovič, Patrik and Eakins, Daniel and Korsunsky, Alexander M.}},
  issn         = {{1350-4177}},
  keywords     = {{Bubble; Hydrodynamic cavitation; Vortex; X-ray imaging}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Ultrasonics Sonochemistry}},
  title        = {{Revealing the origins of vortex cavitation in a Venturi tube by high speed X-ray imaging}},
  url          = {{http://dx.doi.org/10.1016/j.ultsonch.2023.106715}},
  doi          = {{10.1016/j.ultsonch.2023.106715}},
  volume       = {{101}},
  year         = {{2023}},
}