Persistent holes in a fluid

FS Merkt, RD Deegan, DI Goldman, EC Rericha, HL Swinney

Research output: Contribution to journalArticle (Academic Journal)peer-review

68 Citations (Scopus)

Abstract

We observe stable holes in a vertically oscillated 0.5 cm deep aqueous suspension of cornstarch. Holes appear only if a finite perturbation is applied to the layer for accelerations a above 10g. Holes are circular and approximately 0.5 cm wide, and can persist for more than 10(6) cycles. Above asimilar or equal to17g the rim of the hole becomes unstable, producing fingerlike protrusions or hole division. At higher acceleration, the hole delocalizes, growing to cover the entire surface with erratic undulations. We find similar behavior in an aqueous suspension of glass microspheres.
Translated title of the contributionPersistent holes in a fluid
Original languageEnglish
Pages (from-to)1 - 4
Number of pages4
JournalPhysical Review Letters
Volume92 (18) 184501
DOIs
Publication statusPublished - 7 May 2004

Bibliographical note

Publisher: American Physical Society
Other identifier: IDS Number: 818XN

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