Sonoluminescence from Glycerine–Water Mixtures

Young, F. Ronald

doi:10.1038/206706a0

Cited by 9 publications

(3 citation statements)

References 2 publications

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“…It is also the same behavior that is seen when the pulse period is lengthened in pure water . In addition, we note that the MBSL signal in glycerine/water mixtures, using continuous wave 21.5 kHz ultrasound at higher acoustic powers than generated by the pulses in the present study, steadily increased in intensity in going from 0 to 100% glycerine, i.e., no minimum in the MBSL was observed . This result is consistent with the suggestion that the higher acoustic power used in the latter study probably maintains an approximately constant active bubble population and the declining vapor pressure of the glycerine/water mixture is the reason for the increase in the SL intensity with increasing glycerine percentage in the mixed fluid.…”

Section: Discussionsupporting

confidence: 91%

Multibubble Sonoluminescence in Ethylene Glycol/Water Mixtures

2013

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The multibubble sonoluminescence (MBSL) signals generated by 3.5 ms pulses of 515 kHz ultrasound in air-saturated ethylene glycol, water, and ethylene glycol/water mixtures were examined in the absence and presence of a range of solutes, including aliphatic alcohols of various chain lengths (C3-C6) and ionic and zwitterionic surfactants. In general, the alcohols quenched the SL in most solvent mixtures and the surfactants enhanced the sonoluminescence signal. However, in some solvent mixtures complex effects were observed in the presence of the solutes. The discussion presented rationalizes the varied behavior of the solutes on the MBSL observed in terms of their influence on inter- and intrabubble effects experienced by bubbles in an ultrasound field.

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Section: Discussionsupporting

confidence: 91%

Multibubble Sonoluminescence in Ethylene Glycol/Water Mixtures

2013

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“…The present results obtained at 50 kHz agree with those of Golubnichi et al 14) who observed a maximum SL intensity at 80% glycerol at 20 kHz, but disagree with those of Young 13) who reported that the SL intensity at 21 kHz monotonically increased with the glycerol content. Golubnichi et al attributed the observed increase in SL to the increase in the active bubble population, and discussed the observed SL maximum in terms of adiabatic compressibility, which takes a minimum at 80% glycerol.…”

Section: Sonoluminescence From Glycerol Solutionssupporting

confidence: 74%

Multibubble sonoluminescence and bubble dynamics in glycerol/water mixture system

Munenori¹,

Choi²

2020

Jpn. J. Appl. Phys.

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We investigated viscosity dependence of sonoluminescence (SL) in aqueous solutions of glycerol at acoustic frequencies of 50 and 150 kHz. The concentration dependence of SL intensity showed opposite behaviors at the two frequencies. At 50 kHz, the SL intensity increased with increasing glycerol content taking a maximum at 80% glycerol. At 150 kHz, the SL intensity decreased monotonically with increasing glycerol content. Highspeed shadowgraphy of cavitating bubbles with a frame speed of 1 Mfps demonstrated the difference in bubble dynamics at the two frequencies, and clarified the observed results of SL intensity. The increase in SL intensity at 50 kHz resulted from the increase in the number of bubbles exhibiting spherical oscillation caused by the high viscosity. The decrease in SL intensity at 150 kHz resulted from the small expansioncompression ratio of bubble oscillation caused by viscous damping. A numerical simulation of bubble oscillation supported the results.

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“…Higher light intensity can be correlated to increased concentration of ·

radicals that reacted with the luminol of the solution, indicating higher cavitation activity [43] . An experimental investigation by Young coincided with this finding, and reported higher sonoluminescence (SL) activity for increasing viscosity glycerin-water mixtures [54] . In addition, Yasui et al, attributed the higher SL light emissions to more powerful bubble collapse in increased viscosity mixtures [55] .…”

Section: Resultsmentioning

confidence: 65%

Understanding the ultrasound field of high viscosity mixtures: Experimental and numerical investigation of a lab scale batch reactor

Bampouli,

Goris,

Van Olmen

et al. 2023

Ultrasonics Sonochemistry

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Sonoluminescence from Glycerine–Water Mixtures

Cited by 9 publications

References 2 publications

Multibubble Sonoluminescence in Ethylene Glycol/Water Mixtures

Multibubble Sonoluminescence in Ethylene Glycol/Water Mixtures

Multibubble sonoluminescence and bubble dynamics in glycerol/water mixture system

Understanding the ultrasound field of high viscosity mixtures: Experimental and numerical investigation of a lab scale batch reactor

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