Cavitation inception on microparticles: A self-propelled particle accelerator

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Arora, Manish and Ohl, Claus-Dieter and Morch, Knud Aage (2004) Cavitation inception on microparticles: A self-propelled particle accelerator. Physical Review Letters, 92 (17). p. 174501. ISSN 0031-9007

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Abstract:Corrugated, hydrophilic particles with diameters between 30 and 150   μm are found to cause cavitation inception at their surfaces when they are exposed to a short, intensive tensile stress wave. The growing cavity accelerates the particle into translatory motion until the tensile stress decreases, and subsequently the particle separates from the cavity. The cavity growth and particle detachment are modeled by considering the momentum of the particle and the displaced liquid. The analysis suggests that all particles which cause cavitation are accelerated into translatory motion, and separate from the cavities they themselves nucleate. Thus, in the research of cavitation nuclei the link is established between developed cavitation bubbles and their origin.
Item Type:Article
Copyright:© 2004 The American Physical Society
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Link to this item:http://purl.utwente.nl/publications/50091
Official URL:http://dx.doi.org/10.1103/PhysRevLett.92.174501
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