Corrugated, hydrophilic particles with diameters between 30 �m and 150 �m are found to cause cavitation inception at their surfaces when they are exposed to a short, intensive tensile stress wave. The growth of cavity and its interaction with the original nucleating particle is recorded by means of digital imaging. 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.
|Title of host publication||Mechanics of the 21st century : proceedings of the 21st International Congress of Theoretical and Applied Mechanics|
|Editors||Witold Gutkowski, Tomasz A. Kowalewski|
|Place of Publication||Berlin, Germany|
|Publication status||Published - 17 Aug 2004|
|Event||XXI International Congress of Theoretical and Applied Mechanics, ICTAM 2004 - Warsaw, Poland|
Duration: 15 Aug 2004 → 21 Aug 2004
Conference number: 21
|Conference||XXI International Congress of Theoretical and Applied Mechanics, ICTAM 2004|
|Period||15/08/04 → 21/08/04|
Arora, M., Ohl, C. D., & Morch, K. A. (2004). Cavitation inception on micro-particles: a self propelled particle accelerator. In W. Gutkowski, & T. A. Kowalewski (Eds.), Mechanics of the 21st century : proceedings of the 21st International Congress of Theoretical and Applied Mechanics (pp. -). Berlin, Germany: Springer.