Liquid spreading and atomization due to jet impingement in liquid–liquid systems is considered to be crucial for understanding cooling behavior of high temperature molten martial into shallow water pool. This phenomenon takes place where a liquid jet enters a pool filled with another immiscible liquid. The jet spreads radially after impinging on the floor while forming a thin liquid film and atomizing droplets. In this study, we employed three-dimensional Laser-Induced Fluorescence (3D-LIF) measurements and three-dimensional (3D) reconstruction to quantify its unsteady three-dimensional behavior. Under high flow velocity conditions, atomization occurred along with the spreading of the liquid film. To evaluate the spreading behavior of the liquid film, a comparison was made with the existing theory of gas–liquid systems. The spreading of the liquid film was suppressed compared with that of the gas–liquid system. Furthermore, the particle tracking velocimetry method was successfully used to measure the velocity boundary layer and velocity profile in the liquid film, which are important factors that affect the spreading mechanism of the liquid film. The results revealed that in liquid–liquid systems, shear stress at the liquid–liquid interface causes a decrease in the flow velocity and suppressed development of the velocity boundary layer. To evaluate the atomization behavior, the number and diameter distribution of the atomized droplets were measured from the acquired three-dimensional shape data of the jet. The number of droplets increased with the flow velocity. The results show that the jump radius is affected by such atomization behavior, and since the jump radius was lower than the theoretical value, we can conclude that the location of the hydraulic jump is expected to undergo an upstream transition.
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August 2022
Research Article|
August 10 2022
Experimental study of liquid spreading and atomization due to jet impingement in liquid–liquid systems
Sota Yamamura (山村聡太);
Sota Yamamura (山村聡太)
(Data curation, Formal analysis, Investigation, Methodology, Validation, Visualization, Writing – original draft)
1
Graduate School of Systems and Information Engineering, University of Tsukuba
, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
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Kota Fujiwara (藤原広太)
;
Kota Fujiwara (藤原広太)
(Methodology, Software, Visualization, Writing – original draft)
1
Graduate School of Systems and Information Engineering, University of Tsukuba
, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
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Kota Honda (本田恒太);
Kota Honda (本田恒太)
(Methodology, Software, Visualization)
1
Graduate School of Systems and Information Engineering, University of Tsukuba
, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
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Hiroyuki Yoshida (吉田啓之)
;
Hiroyuki Yoshida (吉田啓之)
(Funding acquisition, Validation)
2
Japan Atomic Energy Agency
, 2-4 Shirakata, Tokai, Naka, Ibaraki 319-1195, Japan
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Naoki Horiguchi (堀口直樹)
;
Naoki Horiguchi (堀口直樹)
(Validation)
2
Japan Atomic Energy Agency
, 2-4 Shirakata, Tokai, Naka, Ibaraki 319-1195, Japan
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Akiko Kaneko (金子暁子)
;
Akiko Kaneko (金子暁子)
a)
(Conceptualization, Supervision, Validation, Visualization, Writing – original draft)
3
Faculty of Engineering, Information and Systems, University of Tsukuba
, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
a)Author to whom correspondence should be addressed: [email protected]
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Yutaka Abe (阿部豊)
Yutaka Abe (阿部豊)
(Conceptualization, Project administration, Supervision, Validation)
3
Faculty of Engineering, Information and Systems, University of Tsukuba
, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
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Sota Yamamura (山村聡太)
1
Kota Honda (本田恒太)
1
1
Graduate School of Systems and Information Engineering, University of Tsukuba
, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
2
Japan Atomic Energy Agency
, 2-4 Shirakata, Tokai, Naka, Ibaraki 319-1195, Japan
3
Faculty of Engineering, Information and Systems, University of Tsukuba
, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
a)Author to whom correspondence should be addressed: [email protected]
Physics of Fluids 34, 082110 (2022)
Article history
Received:
May 23 2022
Accepted:
July 15 2022
Citation
Sota Yamamura, Kota Fujiwara, Kota Honda, Hiroyuki Yoshida, Naoki Horiguchi, Akiko Kaneko, Yutaka Abe; Experimental study of liquid spreading and atomization due to jet impingement in liquid–liquid systems. Physics of Fluids 1 August 2022; 34 (8): 082110. https://doi.org/10.1063/5.0100340
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