Nonmonotonic settling of a sphere in a cornstarch suspension

Research output: Contribution to journalArticleAcademicpeer-review

35 Citations (Scopus)
105 Downloads (Pure)

Abstract

Cornstarch suspensions exhibit remarkable behavior. Here, we present two unexpected observations for a sphere settling in such a suspension: In the bulk of the liquid the velocity of the sphere oscillates around a terminal value, without damping. Near the bottom the sphere comes to a full stop, but then accelerates again toward a second stop. This stop-go cycle is repeated several times before the object reaches the bottom. We show that common shear thickening or linear viscoelastic models cannot account for the observed phenomena, and propose a minimal jamming model to describe the behavior at the bottom
Original languageEnglish
Article number060401
Number of pages4
JournalPhysical review E: Statistical, nonlinear, and soft matter physics
Volume84
Issue number6
DOIs
Publication statusPublished - 2011

Keywords

  • METIS-284022
  • IR-78775

Fingerprint Dive into the research topics of 'Nonmonotonic settling of a sphere in a cornstarch suspension'. Together they form a unique fingerprint.

Cite this