Proposed method to estimate the liquid-vapor accommodation coefficient based on experimental sonoluminescence data

Puente, Gabriela F.; Bonetto, F.

doi:10.1103/physreve.71.056309

Cited by 17 publications

(11 citation statements)

References 15 publications

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“…Third, mass transfer between the interior and exterior of the bubble is neglected. Including either or both is possible (Church 1989; Matsumoto et al 2005; Kreider et al 2011), but with the exception of the cases for water and urine at longer pulse durations, the effects would be small because in tissue, lipids and proteins predominate in the surroundings, greatly reducing the accommodation coefficient from the value in pure water (Puente and Bonetto 2005; Fuster et al 2010). Fourth, assuming that the bubble radius is small compared to the wavelength is implemented by assuming that the acoustic pressure on the bubble wall is uniform.…”

Section: Methodsmentioning

confidence: 99%

A Theoretical Study of Inertial Cavitation from Acoustic Radiation Force Impulse Imaging and Implications for the Mechanical Index1

Church

Labuda

Nightingale

2015

Ultrasound in Medicine & Biology

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The mechanical index (MI) attempts to quantify the likelihood that exposure to diagnostic ultrasound will produce an adverse biological effect by a nonthermal mechanism. The current formulation of the MI implicitly assumes that the acoustic field is generated using the short pulse durations appropriate to B-mode imaging. However, acoustic radiation force impulse (ARFI) imaging employs high-intensity pulses up to several hundred acoustic periods long. The effect of increased pulse durations on the thresholds for inertial cavitation was studied computationally in water, urine, blood, cardiac and skeletal muscle, brain, kidney, liver and skin. The results show that while the effect of pulse duration on cavitation thresholds in the three liquids can be considerable, reducing them by, e.g., 6% – 24% at 1 MHz, the effect in tissue is minor. More importantly, the frequency dependence of the MI appears to be unnecessarily conservative, i.e., that the magnitude of the exponent on frequency could be increased to 0.75. Comparison of these theoretical results with experimental measurements suggests that some tissues do not contain the pre-existing, optimally sized bubbles assumed for the MI. This means that in these tissues the MI is not necessarily a strong predictor of the probability for an adverse biological effect.

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Section: Methodsmentioning

confidence: 99%

A Theoretical Study of Inertial Cavitation from Acoustic Radiation Force Impulse Imaging and Implications for the Mechanical Index1

Church

Labuda

Nightingale

2015

Ultrasound in Medicine & Biology

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“…At the interface [r ¼ R(t)], mass transfer is neglected, limiting the strict model applicability to forcing pressure wave frequencies above 100 kHz, where RP models have shown that the bubble dynamics is unaffected by evaporation/condensation. [26][27][28][29] Viscous stresses and radiation heat transfer are also neglected. Continuity, momentum, and energy transport equations applied to an infinitesimal shell about the interface yield the following relations, coupling bubble and liquid variables,…”

Section: Proposed Modelmentioning

confidence: 99%

Liquid compressibility effects during the collapse of a single cavitating bubble

Fuster

Dopazo

Hauke

2011

The Journal of the Acoustical Society of America

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The effect of liquid compressibility on the dynamics of a single, spherical cavitating bubble is studied. While it is known that compressibility damps the amplitude of bubble rebounds, the extent to which this effect is accurately captured by weakly compressible versions of the Rayleigh-Plesset equation is unclear. To clarify this issue, partial differential equations governing conservation of mass, momentum, and energy are numerically solved both inside the bubble and in the surrounding compressible liquid. Radiated pressure waves originating at the unsteady bubble interface are directly captured. Results obtained with Rayleigh-Plesset type equations accounting for compressibility effects, proposed by Keller and Miksis [J. Acoust. Soc. Am. 68, 628-633 (1980)], Gilmore, and Tomita and Shima [Bull. JSME 20, 1453-1460], are compared with those resulting from the full model. For strong collapses, the solution of the latter reveals that an important part of the energy concentrated during the collapse is used to generate an outgoing pressure wave. For the examples considered in this research, peak pressures are larger than those predicted by Rayleigh-Plesset type equations, whereas the amplitudes of the rebounds are smaller.

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“…Several values have been reported for the accommodation coefficient, ranging from 10 −3 to 1 for various systems. 9,20 Toegel et al suggested that vapor transport is controlled by the rate of diffusion inside the cavity. 11 Assuming that the total molar concentration inside the cavity, C t , is spatially uniform, the following expression is obtained from the Maxwell-Stefan theory, which holds for diluted as well as concentrated systems:…”

Section: ͑8͒mentioning

confidence: 99%

Inhibition of nonlinear acoustic cavitation dynamics in liquid CO2

Iersel

Cornel²,

Benes³

et al. 2007

The Journal of Chemical Physics

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The authors present a model to study ultrasound-induced cavitation dynamics in liquid carbon dioxide ͑CO 2 ͒, which includes descriptions for momentum, mass, and energy transport. To assist in the interpretation of these results, numerical simulations are presented for an argon cavity in water. For aqueous systems, inertia effects and force accumulation lead to a nonlinear radial motion, resulting in an almost adiabatic compression of the cavity interior. The simulations for liquid CO 2 suggest that transport limitations impede nonlinear cavitation dynamics and the corresponding temperature rise. Consequently, in liquid CO 2 the ultrasound-induced formation of radicals appears improbable.

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Proposed method to estimate the liquid-vapor accommodation coefficient based on experimental sonoluminescence data

Cited by 17 publications

References 15 publications

A Theoretical Study of Inertial Cavitation from Acoustic Radiation Force Impulse Imaging and Implications for the Mechanical Index1

A Theoretical Study of Inertial Cavitation from Acoustic Radiation Force Impulse Imaging and Implications for the Mechanical Index1

Liquid compressibility effects during the collapse of a single cavitating bubble

Inhibition of nonlinear acoustic cavitation dynamics in liquid CO2

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