✦ LIBER ✦

Using Acoustics to Study and Stimulate the Coalescence of Oil Drops Surrounded by Water

✍ Scribed by Edward A. Gardner; Robert E. Apfel

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 953 KB
Volume: 159
Category: Article
ISSN: 0021-9797
DOI: 10.1006/jcis.1993.1316

No coin nor oath required. For personal study only.

✦ Synopsis

The coalescence of oil drops in water is studied using acoustic levitation and stimulated with acoustic cavitation. Unlike most earlier studics, which investigate the coalescence of a single drop with an initially planar interface, the use of acoustic radiation forces allows two drops to be brought into contact and allowed to coalesce. This acoustic technique has the advantage over other drop-drop coalescence systems in that the drops remain in contact until they coalesce without the use of solid supports to control them. Additionally, acoustic cavitation is observed to deposit sufficient energy in the oil-water interface to trigger the coalescence of a pair of 2-mm-diameter drops. This stimulation mechanism conld have application to comulsion lreaking. Some of the fictors that alfect spontineous and stimulated coalescence are investigated. &B 1%), Acatemic Press, Inc.

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