Shape dynamics of interfacial front in rotating cylinders

Gerald H. Ristow, Masami Nakagawa

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


The evolution of the interface propagation in a slowly rotating half-filled horizontal cylinder is studied using magnetic resonance imaging. Initially, the cylinder contains two axially segregated bands of small and large particles with a sharp interface. The process of the formation of the radial core is clearly captured, and the shape and the velocity of the propagating front are calculated by assuming a one-dimensional diffusion process along the rotation axis of the cylinder and a separation of time scales associated with segregation in the radial and axial directions. We found that the interfacial dynamics are best described when a concentration-dependent diffusion process is assumed.

Original languageEnglish
Pages (from-to)2044-2048
Number of pages5
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Issue number2
Publication statusPublished - 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics


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