Mechanism of high velocity jet formation after a gas bubble collapse near the micro fiber immersed in a liquid

Roman V. Fursenko; Vladimir M. Chudnovskii; Sergey S. Minaev; Junnosuke Okajima

doi:10.1016/j.ijheatmasstransfer.2020.120420

Mechanism of high velocity jet formation after a gas bubble collapse near the micro fiber immersed in a liquid

Roman V. Fursenko, Vladimir M. Chudnovskii, Sergey S. Minaev, Junnosuke Okajima

IFS - Complex Flow Research Division

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

Numerical simulations of the vapor bubble collapse near the micro fiber immersed in a subcooled liquid allow us to propose the mechanism of formation of high velocity liquid jet previously observed in experiments. It is shown that spherical symmetry breaking of the velocity field near the fiber creates axisymmetric radially converged water flow resulting in appearance of the cumulative jet. Numerical simulations demonstrate that physical mechanism of jet formation is mainly determined by bubble surface dynamic and is irrespective to the processes driving bubble shrinking. Dependency of the jet velocity on time as well as effect of fiber thickness and initial vapor bubble radius on jet intensity are studied. It is found that optimal fiber thickness at which the jet is the most powerful exists. This optimal value is not universal but depends on initial vapor bubble radius.

Original language	English
Article number	120420
Journal	International Journal of Heat and Mass Transfer
Volume	163
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2020.120420
Publication status	Published - 2020 Dec

Keywords

Bubble collapse
Condensation
High velocity cumulative jet
Laser surgery
Two-phase flow

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10.1016/j.ijheatmasstransfer.2020.120420

Cite this

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title = "Mechanism of high velocity jet formation after a gas bubble collapse near the micro fiber immersed in a liquid",

abstract = "Numerical simulations of the vapor bubble collapse near the micro fiber immersed in a subcooled liquid allow us to propose the mechanism of formation of high velocity liquid jet previously observed in experiments. It is shown that spherical symmetry breaking of the velocity field near the fiber creates axisymmetric radially converged water flow resulting in appearance of the cumulative jet. Numerical simulations demonstrate that physical mechanism of jet formation is mainly determined by bubble surface dynamic and is irrespective to the processes driving bubble shrinking. Dependency of the jet velocity on time as well as effect of fiber thickness and initial vapor bubble radius on jet intensity are studied. It is found that optimal fiber thickness at which the jet is the most powerful exists. This optimal value is not universal but depends on initial vapor bubble radius.",

keywords = "Bubble collapse, Condensation, High velocity cumulative jet, Laser surgery, Two-phase flow",

author = "Fursenko, {Roman V.} and Chudnovskii, {Vladimir M.} and Minaev, {Sergey S.} and Junnosuke Okajima",

note = "Funding Information: This work was supported financially by the Ministry of Science and Higher Education of the Russian Federation (project 075-15-2019-1878). Part of the work was carried out under the Collaborative Research Project of the Institute of Fluid Science, Tohoku University. Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2020",

month = dec,

doi = "10.1016/j.ijheatmasstransfer.2020.120420",

language = "English",

volume = "163",

journal = "International Journal of Heat and Mass Transfer",

issn = "0017-9310",

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T1 - Mechanism of high velocity jet formation after a gas bubble collapse near the micro fiber immersed in a liquid

AU - Fursenko, Roman V.

AU - Chudnovskii, Vladimir M.

AU - Minaev, Sergey S.

AU - Okajima, Junnosuke

N1 - Funding Information: This work was supported financially by the Ministry of Science and Higher Education of the Russian Federation (project 075-15-2019-1878). Part of the work was carried out under the Collaborative Research Project of the Institute of Fluid Science, Tohoku University. Publisher Copyright: © 2020 Elsevier Ltd

PY - 2020/12

Y1 - 2020/12

N2 - Numerical simulations of the vapor bubble collapse near the micro fiber immersed in a subcooled liquid allow us to propose the mechanism of formation of high velocity liquid jet previously observed in experiments. It is shown that spherical symmetry breaking of the velocity field near the fiber creates axisymmetric radially converged water flow resulting in appearance of the cumulative jet. Numerical simulations demonstrate that physical mechanism of jet formation is mainly determined by bubble surface dynamic and is irrespective to the processes driving bubble shrinking. Dependency of the jet velocity on time as well as effect of fiber thickness and initial vapor bubble radius on jet intensity are studied. It is found that optimal fiber thickness at which the jet is the most powerful exists. This optimal value is not universal but depends on initial vapor bubble radius.

AB - Numerical simulations of the vapor bubble collapse near the micro fiber immersed in a subcooled liquid allow us to propose the mechanism of formation of high velocity liquid jet previously observed in experiments. It is shown that spherical symmetry breaking of the velocity field near the fiber creates axisymmetric radially converged water flow resulting in appearance of the cumulative jet. Numerical simulations demonstrate that physical mechanism of jet formation is mainly determined by bubble surface dynamic and is irrespective to the processes driving bubble shrinking. Dependency of the jet velocity on time as well as effect of fiber thickness and initial vapor bubble radius on jet intensity are studied. It is found that optimal fiber thickness at which the jet is the most powerful exists. This optimal value is not universal but depends on initial vapor bubble radius.

KW - Bubble collapse

KW - Condensation

KW - High velocity cumulative jet

KW - Laser surgery

KW - Two-phase flow

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VL - 163

JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

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Mechanism of high velocity jet formation after a gas bubble collapse near the micro fiber immersed in a liquid

Abstract

Keywords

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Revealing Reason Behind Jet Formation at Tip of Laser Optical Fiber

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Mechanism of high velocity jet formation after a gas bubble collapse near the micro fiber immersed in a liquid

Abstract

Keywords

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Revealing Reason Behind Jet Formation at Tip of Laser Optical Fiber

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