Interactions of multiple spark-generated bubbles with phase differences

Fong, Siew Wan; Adhikari, Deepak; Klaseboer, Evert; Khoo, Boo Cheong

doi:10.1007/s00348-008-0603-4

Cited by 145 publications

(68 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While solid, free, elastic or composite interfaces and bubble manipulation with acoustic or shock waves might be considered as a means of control of individual jetting bubbles (Chahine 1977;Blake & Gibson 1981;Gibson & Blake 1982;Blake et al 1986;Blake, Taib & Doherty 1987;Shima et al 1989;Brujan et al 2001a,b;Robinson et al 2001;Tomita et al 2002;Wolfrum et al 2002Wolfrum et al , 2003Ohl et al 2006;Wang & Blake 2010, their use can be problematic owing to the introduction of additional constraints and the need for proper placement. Generation of a single asymmetric bubble (Lim et al 2010) or of a bubble pair (Lauterborn 1974;Lauterborn & Vogel 1984;Lauterborn & Hentschel 1985;Testud-Giovanneschi, Alloncle & Dufresne 1990;Tomita, Shima & Sato 1990;Blake et al 1993;Jungnickel & Vogel 1994;Tomita, Sato & Shima 1994;Fong et al 2009;Sankin, Yuan & Zhong 2010) with predetermined jetting behaviour by means of optical breakdown in the bulk of transparent liquids appear as a less invasive and more versatile tool for control and optimization of jet properties.…”

mentioning

confidence: 99%

“…A number of researchers have already investigated this interaction experimentally (Tomita et al 1994;Bremond et al 2006;Fong et al 2009;Sankin et al 2010;Chew et al 2011) and numerically (Blake et al 1993;Bremond et al 2006;Fong et al 2009;Hsiao et al 2013). The jetting direction is determined by the direction of the axis connecting the bubble centres, and thus can easily be adjusted.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Dynamics of laser-induced bubble pairs

et al. 2015

View full text Add to dashboard Cite

The interaction of two laser-induced bubbles in bulk water is investigated. The strength and direction of the emerging liquid jets can be controlled by adjusting the relative bubble positions, the time difference between bubble generation, and the laser pulse energies determining the bubble sizes. Experimental and numerical studies are performed for millimetre-sized bubble pairs. Taking bubbles of equal energy, a maximum jet velocity is found for close anti-phase bubbles, i.e. when the second bubble is produced at the maximum volume of the first one and the bubble walls are almost touching and not merging. Under these conditions, one bubble produces a fast jet with a peak velocity of about 150 m s −1 that reaches a distance into the surrounding liquid of at least three times the maximum bubble radius. Collapse of the other bubble results in a slow jet of large mass that rapidly converts into a ring vortex. Correspondingly, the interaction with adjacent structures is dominated either by localized jet impact or by shear stresses extending over a larger area. Furthermore, interactions between micrometre-sized bubble pairs are investigated numerically to understand and predict how the effects of the physical parameters on bubble dynamics would change when the bubbles become smaller. The results are discussed with respect to micropumping and opto-injection.

show abstract

mentioning

confidence: 99%

mentioning

confidence: 99%

Dynamics of laser-induced bubble pairs

et al. 2015

View full text Add to dashboard Cite

show abstract

“…While they are traditionally associated with erosion damage [1,2], recent efforts have been aimed at medical applications, such as contrastenhancing in ultrasonic imaging [3] and shock wave lithotripsy [4]. Both spark-generated bubbles [2,[5][6][7][9][10][11] and laser-generated bubbles [1,8,[12][13][14][15][16][17][18] are very useful tools in experimental studies of free bubble oscillations.…”

Section: Introductionmentioning

confidence: 99%

Experimental Determination of Temperatures in Spark Generated Bubbles Oscillating in Water

Vokurka

2017

Acta Polytech

View full text Add to dashboard Cite

Abstract. The surface temperatures of the plasma core in the final stages of the first contraction phase of spark-generated bubbles oscillating under ordinary laboratory conditions in a large expanse of water are determined experimentally. The measurement method is based on an analysis of the optical radiation from the bubbles and on the assumption that the plasma core is radiating as a black-body. It is found that the maximum surface temperatures of the plasma core range 4300-8700 K.

show abstract

“…4.3c). The push-and-pull action of the tandem bubble (more specifically of B 2 , as shown in Fig 4.3) has been coined the 'catapult' effect [138].…”

Section: Effects Of Phase Delay On Tandem Bubble Interactionmentioning

confidence: 99%

Probing the bioeffects of cavitation at the single-cell level

Yuan

Sankin

Yang

et al. 2013

The Journal of the Acoustical Society of America

View full text Add to dashboard Cite

The primary goal of this dissertation research is to develop an experimental system and associated techniques that can be used to investigate the bioeffects produced by cavitation bubbles at the single cell level. Such information has been lacking due to the randomness and complexity in cavitation inception and subsequent bubble-bubble interaction generated by an acoustic field typically used in therapeutic ultrasound applications.Connection between cavitation activities and bioeffects produced in cells nearby presents another challenge that has not been resolved satisfactorily. In this work, we developed a laser-based system for generating tandem bubbles with a maximum diameter about 50 µm (i.e., on the scale of a single cell) in a microfluidic channel of 25 µm in height and 800 µm in width. We further developed techniques for micropatterning of individual gold dots (15 nm thick and 6 µm in diameter) used for bubble generation, which are precisely aligned at various stand-off distances (SD) from individual islands (32 x32 µm 2 ) coated with fibronectin used for cell adhesion. The dynamics of tandem bubble interaction with resultant jet formation, microstreaming and vortex flow in the microfluidic channel were captured by high-speed imaging and particle image velocimetry (PIV). The deformation of the target cell was recorded by high-speed imaging as well (using a second camera) immediately after the tandem bubble interaction and assessment of membrane strain was aided with 2 µm sized polystyrene beads attached to the cell membrane.

show abstract

Interactions of multiple spark-generated bubbles with phase differences

Cited by 145 publications

References 50 publications

Dynamics of laser-induced bubble pairs

Dynamics of laser-induced bubble pairs

Experimental Determination of Temperatures in Spark Generated Bubbles Oscillating in Water

Probing the bioeffects of cavitation at the single-cell level

Contact Info

Product

Resources

About