Akademik Veri Yönetim Sistemi
Granular Matter, cilt.18, sa.44, ss.44, 2016 (SCI İndekslerine Giren Dergi)
Within the scope of this study we report the formation of a cylindrical sand pile in a container rotating around
a vertical axis. A steady stream of dry sand is poured offrotation-axis in a cylindrical acrylic glass container, which
is partially filled with water. Due to the centrifugal force at a
certain angular velocity, water forms a truncated parabolic,
which leaves the center part of the container base empty, and
as the sand particles accumulate on the dry base, a cylindrical
pile is formed with a parabolic pit at the top. The vertically
growing cylindrical sand pile is more stable with small grains
than with big sand particles. The mechanical stabilization of
the cylindrical sand pile is achieved by the equilibration of
the capillary forces and the resulting negative Laplace pressure of the soaked up water inside the pile. The essential
features of the phenomenon are discussed and its robustness
is demonstrated with experiments by varying the experimental boundary conditions and sand type.