Plug flow formation and growth in da Vinci fluids

Moshe Schwartz, Raphael Blumenfeld*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A model is discussed for flow of dense granular matter - a da Vinci fluid. The local properties of the fluid are generically different from ordinary fluids in that energy is dissipated by solid friction. We discuss the equation of flow of such a fluid and show that it gives rise to formation and growth of plug regions - a phenomenon observed frequently in flow of granular matter. Simple explicit examples are presented to illustrate the evolution of plug flow regions.

Original languageEnglish
Pages (from-to)241-245
Number of pages5
JournalGranular Matter
Issue number3
StatePublished - Jun 2011


  • Da Vinci fluid
  • Dense granular flow
  • Flow equations
  • Plug flow
  • Plug formation
  • Rheology


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