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 contribution | Persistent holes in a fluid |
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Original language | English |
Pages (from-to) | 1 - 4 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 92 (18) 184501 |
DOIs | |
Publication status | Published - 7 May 2004 |
Bibliographical note
Publisher: American Physical SocietyOther identifier: IDS Number: 818XN