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

被引：10

作者：

Soyama, Hitoshi ^{[1
]}

Liang, Xiaoyu ^{[2
]}

Yashiro, Wataru ^{[2
,3
,4
]}

Kajiwara, Kentaro ^{[5
]}

Asimakopoulou, Eleni Myrto ^{[6
,7
]}

Bellucci, Valerio ^{[8
]}

Birnsteinova, Sarlota ^{[8
]}

Giovanetti, Gabriele ^{[8
]}

Kim, Chan ^{[8
]}

Kirkwood, Henry J. ^{[8
]}

Koliyadu, Jayanath C. P. ^{[8
]}

Letrun, Romain ^{[8
]}

Zhang, Yuhe ^{[6
,7
]}

Ulicny, Jozef ^{[9
]}

Bean, Richard ^{[8
]}

Mancuso, Adrian P. ^{[10
,11
]}

Villanueva-Perez, Pablo ^{[6
,7
]}

Sato, Tokushi ^{[8
]}

Vagovic, Patrik ^{[8
,12
]}

Eakins, Daniel ^{[13
]}

Korsunsky, Alexander M. ^{[13
]}

机构：

[1] Tohoku Univ, Dept Finemech, 6-6-01 Aramaki,Aoba Ku, Sendai 9808579, Japan

[2] Tohoku Univ, Inst Multidisciplinary Res Adv Mat IMRAM, Katahira 2-1-1,Aoba Ku, Sendai, Miyagi 9808577, Japan

[3] Tohoku Univ, Int Ctr Synchrotron Radiat Innovat Smart SRIS, Katahira 2-1-1,Aoba Ku, Sendai, Miyagi 9808577, Japan

[4] Univ Tokyo, Sch Engn, Dept Appl Phys, 7-3-1 Hongo,Bunkyo Ku, Tokyo 1138656, Japan

[5] Japan Synchrotron Radiat Res Inst, 1-1-1 Kouto, Sayo, Hyogo 6795198, Japan

[6] Lund Univ, Synchrotron Radiat Res, Box 118, S-22100 Lund, Sweden

[7] Lund Univ, NanoLund, Box 118, S-22100 Lund, Sweden

[8] European XFEL GmbH, Holzkoppel 4, D-22869 Schenefeld, Germany

[9] Safarik Univ, Fac Sci, Dept Biophys, Jesenna 5, Kosice 04154, Slovakia

[10] Diamond Light Source Ltd, Harwell Sci & Innovat Campus,Diamond House, Didcot OX11 0DE, England

[11] La Trobe Univ, La Trobe Inst Mol Sci, Dept Chem & Phys, Melbourne, Vic 3086, Australia

[12] DESY, Ctr Free Electron Laser Sci CFEL, Notkestr 85, D-22607 Hamburg, Germany

[13] Univ Oxford, Dept Engn Sci, Parks Rd, Oxford OX1 3PJ, England

来源：

ULTRASONICS SONOCHEMISTRY | 2023年 / 101卷

基金：

日本科学技术振兴机构; 瑞典研究理事会;

关键词：

Hydrodynamic cavitation; Vortex; Bubble; X-ray imaging; WASTE-WATER TREATMENT; SPECIAL EMPHASIS; NUMERICAL-SIMULATION; FLOW; DYNAMICS; INTENSITY; MECHANISM; CAVITY; LASER;

D O I：

10.1016/j.ultsonch.2023.106715

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

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.

引用

页数：16

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