Observations of the interaction of cavitation bubbles with attached cavities

Book · Sat Dec 31 04:00:00 EST 1994

OSTI ID:100931

Li, C Y; Ceccio, S ^[1]

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1. Univ. of Michigan, Ann Arbor, MI (United States)

The inception and form of attached cavitation can be significantly effected by the presence of traveling bubbles. Traveling bubbles may induce transient regions of incipient attached cavitation. Furthermore, traveling bubbles may sweep away regions of developed attached cavitation. The number and size of traveling bubbles which will occur in a flow is strongly dependent on the freestream nuclei distribution. Consequently, bubble/attached cavity interaction provide a mechanism whereby the freestream nuclei distribution can significantly influence the inception and form of attached cavitation. Experiments were performed onto rectangular platform hydrofoils to investigate this phenomena. Individual cavitation nuclei were created in the flow via a focused laser beam to create individual traveling bubbles. These bubbles were observed as they interacted with the flow near the foils and as they interacted with developed attached cavitation present at the foil midcord.

• OSTI ID: 100931
• Report Number(s): CONF-940659--; ISBN 0-7918-1373-8
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
BUBBLES
CAVITATION
EXPERIMENTAL DATA
FLUID MECHANICS
NUCLEATION
TWO-PHASE FLOW