Fragmentation Mechanisms

Description: Bubble collapse heats bubble core

Citations for image:
Thomas J. Matula, “Inertial Cavitation and sonoluminescence,”
Phil. Trans. R. Soc. Lond., 357, 225-249 (1999).

Thomas J. Matula, “Single-bubble sonoluminescence
in microgravity,” Ultrasonics 38, 559-565 (2000).

Movie courtesy of Thomas Matula, Ph.D.

Fragmentation Mechanisms: Temperature cleaves molecules. Radicals attack bonds. Shear forces around bubble.

Description: Inertial Bubble Collapse

Images and movie courtesy of Thomas Matula, Ph.D.

Fragmentation Mechanism: Shear stresses.

Description: Bubble Collapse Generates Jet

Werner Lauterborn and Claus-Dieter Ohl,
“The Peculiar Dynamics of Cavitation Bubbles,”

Applied Scientific Research, Vol. 58, pp 63–76 (1998).

Movie and still above courtesy of Lawrence Crum, Ph.D.

Fragmentation Mechanisms: Mechanical impact. Shear stresses.

Description: Bubble Oscillation Generates Microstreaming

Paul Tho, Richard Mannasseh, and Andrew Ooi, “Cavitation microstreaming patterns in single and multiple bubble systems,” Journal of Fluid Mechanics; Vol. 576, pp 191-233 (2007)

Movie courtesy Richard Mannasseh, Ph.D.

Fragmentation Mechanism: Shear stresses.