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Author Annenkova, E. A. ♦ Kreider, W. ♦ Sapozhnikov, O. A.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ENGINEERING ♦ ANIMAL TISSUES ♦ BEAMS ♦ BOILING ♦ BUBBLE GROWTH ♦ BUBBLES ♦ CAVITIES ♦ HOT SPOTS ♦ LIQUIDS ♦ NONLINEAR PROBLEMS ♦ SPHERICAL CONFIGURATION ♦ VAPOR PRESSURE ♦ VAPORS ♦ WAVE FORMS
Abstract Growth of a vapor bubble in a superheated liquid is studied theoretically. Contrary to the typical situation of boiling, when bubbles grow in a uniformly heated liquid, here the superheated region is considered in the form of a millimeter-sized spherical hot spot. An initial micron-sized bubble is positioned at the hot spot center and a theoretical model is developed that is capable of studying bubble growth caused by vapor pressure inside the bubble and corresponding hydrodynamic and thermal processes in the surrounding liquid. Such a situation is relevant to the dynamics of vapor cavities that are created in soft biological tissue in the focal region of a high-intensity focused ultrasound beam with a shocked pressure waveform. Such beams are used in the recently proposed treatment called boiling histotripsy. Knowing the typical behavior of vapor cavities during boiling histotripsy could help to optimize the therapeutic procedure.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-10-28
Publisher Place United States
Volume Number 1685
Issue Number 1


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