Patchy Granular Matter

The collective behavior of agitated granular particles bound by liquid bridges shall be investigated experimentally. The shape of the particles is designed to tune the maximum coordination number — reminiscent of thermally driven patchy colloids — at a macroscopic scale where thermal energy does not play a crucial role. The focus is on the transitions between solidlike, liquidlike and gaslike states in a quasi-two-dimensional system. The goal is to identify the general role of particle shape in determining the collective behavior of patchy granulates. The motivation arises from the ubiquity of wet granular matter in nature (wet sand) and engineering (multiphase flow). In those situations, the geometry of the particles — with its corresponding coordination number from the building of liquid bridges — plays an important role. Ref.

Awarded By

  • German Research Foundation



  • November 2015