Long-range dynamic correlations in confined suspensions

Derek Frydel*, Haim Diamant

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Hydrodynamic interactions between particles confined in a liquid-filled linear channel are known to be screened beyond a distance comparable to the channel width. Using a simple analytical theory and lattice Boltzmann simulations, we show that the hydrodynamic screening is qualitatively modified when the time-dependent response and finite compressibility of the host liquid are taken into account. Diffusive compression modes in the confined liquid cause the particles to have velocity correlations of unbounded range, whose amplitude decays with time only as t-3/2.

Original languageEnglish
Article number248302
JournalPhysical Review Letters
Issue number24
StatePublished - 17 Jun 2010


Dive into the research topics of 'Long-range dynamic correlations in confined suspensions'. Together they form a unique fingerprint.

Cite this