Anomalous distribution functions in sheared suspensions

J.D.R. Harting, H.J. Herrmann, E. Ben-Naim

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)

Abstract

We investigate velocity probability distribution functions (PDF) of sheared hard-sphere suspensions. As observed in our Stokes flow simulations and explained by our single-particle theory, these PDFs can show pronounced deviations from a Maxwell-Boltzmann distribution. The PDFs are symmetric around zero velocity and show a Gaussian core and exponential tails over more than six orders of magnitude of probability. Following the excellent agreement of our theory and simulation data, we demonstrate that the distribution functions scale with the shear rate, the particle volume concentration, as well as the fluid viscosity.
Original languageEnglish
Article number30001
Pages (from-to)30001-1/5
JournalEPL
Volume83
Issue number3
DOIs
Publication statusPublished - 2008

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