TY  - JOUR
AU  - Soyama, Hitoshi
AU  - Liang, Xiaoyu
AU  - Yashiro, Wataru
AU  - Kajiwara, Kentaro
AU  - Asimakopoulou, Eleni Myrto
AU  - Bellucci, Valerio
AU  - Birnsteinova, Sarlota
AU  - Giovanetti, Gabriele
AU  - Kim, Chan
AU  - Kirkwood, Henry J.
AU  - Koliyadu, Jayanath C. P.
AU  - Letrun, Romain
AU  - Zhang, Yuhe
AU  - Uličný, Jozef
AU  - Bean, Richard
AU  - Mancuso, Adrian P.
AU  - Villanueva-Perez, Pablo
AU  - Sato, Tokushi
AU  - Vagovič, Patrik
AU  - Eakins, Daniel
AU  - Korsunsky, Alexander M.
TI  - Revealing the origins of vortex cavitation in a Venturi tube by high speed X-ray imaging
JO  - Ultrasonics sonochemistry
VL  - 101
SN  - 1350-4177
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - PUBDB-2023-07556
SP  - 106715 
PY  - 2023
AB  - 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.
LB  - PUB:(DE-HGF)16
C6  - 38061251
UR  - <Go to ISI:>//WOS:001139034000001
DO  - DOI:10.1016/j.ultsonch.2023.106715
UR  - https://bib-pubdb1.desy.de/record/599839
ER  -