Bubble oscillations of large amplitude

Keller, Joseph B.; Miksis, Michael J.

doi:10.1121/1.384720

Cited by 1,085 publications

(361 citation statements)

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“…The Minneart equation and its variations (eg, Rayleigh-Plesset equation), which express the resonance frequency of bubbles in an acoustic field, do not consent valid oscillations at the frequencies used in medical practice and for air structures with dimensions similar to those that make up both normal and pathologic lung cortex (on the order of 10-100 µm). 34,35 Microbubbles can have vibrational resonance at very specific frequencies, as seen with sonographic contrast agents, but their resonance does not cause the artifacts that are seen in lung scans, and they in fact behave like Rayleigh scatterers. 36 If this were true, in fact, ring-down artifacts would also be seen when bubble contrast agents are introduced into the bloodstream.…”

Section: Discussionmentioning

confidence: 99%

Sonographic Interstitial Syndrome

Soldati¹,

Copetti

Sher

2009

Journal of Ultrasound in Medicine

224

172

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Objective. Ultrasound lung comets (ULCs) now have an acknowledged correlation with extravascular lung water, but they present in different orders and numbers in different pathologic pulmonary entities. How these artifacts are created is not yet known, and the literature gives discordant hypotheses. Understanding their formation is the first step in understanding lung disease. The purpose of this study was to show the morphologic and genetic variability of interstitial lung disease studied with echography and thus to propose a unitary mechanism for the formation of ULCs. Methods. This study included 3 parts: (1) a retrospective analysis of echographic lung images of patients with interstitial syndrome; (2) an analysis of the literature for definitions of the size of the pulmonary lobule; and (3) an experimental model of different air-water interfaces scanned with varying ultrasonic frequencies.Results. The retrospective analysis of echographic lung images included 176 patients with diffuse ULCs: 118 patients had acute pulmonary edema; 18 had acute lung injury/acute respiratory distress syndrome; and 40 were premature neonates with respiratory distress syndrome. Experimental models permitted us to discover that ring-down artifacts are produced only by single and double layers of bubbles in specific structural settings. Conclusions. Reverberation between bubbles with a critical radius seems to be at the origin of ring-down artifacts. Echographic manifestations of interstitial lung disease, whose genesis lies in the partial air loss of lobes and segments, are acoustic phenomena originating from variations in the tissue-fluid relationship of the lung. A correlation between anatomopathologic characteristics and structures of sonographic artifacts could allow more rapid and noninvasive diagnoses.

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Section: Discussionmentioning

confidence: 99%

Sonographic Interstitial Syndrome

Soldati¹,

Copetti

Sher

2009

Journal of Ultrasound in Medicine

224

172

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“…The Rayleigh-Taylor equation (Rayleigh 1917) augmented with an expression for viscosity, surface tension, an incident sound wave (Rayleigh/Plesset/Noltingk/Neppiras/Poritsky) (Lauterborn 1976) and radiation damping (Löfstedt et al 1993) is frequently used. An equation with a more complete modelling of radiation damping is the one from Keller & Miksis (1980) (see also Brennen 1995)…”

Section: Radial Oscillations (A) the Gilmore Equationmentioning

confidence: 99%

Acoustic energy radiated by nonlinear spherical oscillations of strongly driven bubbles

Holzfuss

2010

Proc. R. Soc. A.

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Based on the theory of F. Gilmore (Gilmore 1952 The growth or collapse of a spherical bubble in a viscous compressible liquid) for radial oscillations of a bubble in a compressible medium, the sound emission of bubbles in water driven by high-amplitude ultrasound is calculated. The model is augmented to include expressions for a variable polytropic exponent, hardcore and water vapour. Radiated acoustic energies are calculated within a quasi-acoustic approximation and also a shock wave model. Isoenergy lines are shown for driving frequencies of 23.5 kHz and 1 MHz. Together with calculations of stability against surface wave oscillations leading to fragmentation, the physically relevant parameter space for the bubble radii is found. Its upper limit is around 6 mm for the lower frequency driving and 1-3 mm for the higher. The radiated acoustic energy of a single bubble driven in the kilohertz range is calculated to be of the order of 100 nJ per driving period; a bubble driven in the megahertz range reaches two orders of magnitude less. The results for the first have applications in sonoluminescence research. Megahertz frequencies are widely used in wafer cleaning, where radiated sound may be implicated as responsible for the damage of nanometre-sized structures.

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“…To describe the time evolution of the bubble radius R(t) in liquid water, a slightly modified form [18] of the well-known Keller-Miksis equation [43] was used:…”

Section: The Bubble Oscillatormentioning

confidence: 99%

Classification of the bifurcation structure of a periodically driven gas bubble

Varga

Hegedűs

2016

Nonlinear Dyn

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The bifurcation structure of a periodically driven spherical gas/vapour bubble is examined by means of methods of nonlinear analysis. The study of Behnia and his coworkers [1] revealed that the bifurcation structures with the pressure amplitude of the excitation as control parameter are structurally similar provided that R E ω is kept constant. In the present paper, this problem is revisited. Analytical and numerical investigations of the bubble oscillator, which is the Keller-Miksis equation, are presented. It is shown that the validity range of Behnia's condition is governed by the viscosity and the surface tension, and holds only for relatively large bubbles. In water, the effect of viscosity is negligible, and the surface tension plays significant role at bubble size lower than approximately 5 µm.

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Bubble oscillations of large amplitude

Cited by 1,085 publications

References 0 publications

Sonographic Interstitial Syndrome

Sonographic Interstitial Syndrome

Acoustic energy radiated by nonlinear spherical oscillations of strongly driven bubbles

Classification of the bifurcation structure of a periodically driven gas bubble

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