Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Frank Rietz"'
Publikováno v:
Physical review letters. 120(5)
We present an experiment on crystallization of packings of macroscopic granular spheres. This system is often considered to be a model for thermally driven atomic or colloidal systems. Cyclically shearing a packing of frictional spheres, we observe a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de1f33b2f721bc0b65e9a1234ca70a30
https://pubmed.ncbi.nlm.nih.gov/29481202
https://pubmed.ncbi.nlm.nih.gov/29481202
Autor:
Frank Rietz, Ralf Stannarius
Publikováno v:
Complexity and Synergetics ISBN: 9783319643335
Granular materials contain, even though they have been an integral part of human technology since ancient times, numerous mysteries even today. Dynamic phenomena observed in such materials depend on a multitude of parameters, and a general descriptio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56980cbf6d05437b773e42bcc50e6c95
https://doi.org/10.1007/978-3-319-64334-2_5
https://doi.org/10.1007/978-3-319-64334-2_5
Autor:
Ralf Stannarius, Frank Rietz
Granulates are ubiquitous in nature and technology, but, despite their great importance, their dynamics are by far less well understood than those of liquids. We demonstrate in an almost compactly filled flat (Hele-Shaw) cell, where slow horizontal r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ff2a46ad410ffb2323dd256c51d0c86
http://arxiv.org/abs/1706.04978
http://arxiv.org/abs/1706.04978
Autor:
Frank Rietz
Publikováno v:
AIP Conference Proceedings.
Self-organized pattern formation in two-dimensional packings is reported. Continuous rotation of a densely packed monolayer leads to two possible states: either the packing segregates without any recognizable collective particle motion, or the packin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b29b85a52312e0b2b73de78082d64d58
https://doi.org/10.1063/1.4812045
https://doi.org/10.1063/1.4812045
Autor:
Frank Rietz, Ralf Stannarius
Publikováno v:
AIP Conference Proceedings.
Bidisperse mixtures of spherical grains are studied in a flat horizontally rotating container. Its thickness is a few particle diameters, so that the particle trajectories are quasi two-dimensional. We describe two regimes: At low fillings we find se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2904fae565c50d2733e8b3c79f2133d
https://doi.org/10.1063/1.4812043
https://doi.org/10.1063/1.4812043
Publikováno v:
Review of Scientific Instruments
Review of Scientific Instruments 83 (2012) 1
Review of Scientific Instruments, 83(1)
Review of Scientific Instruments 83 (2012) 1
Review of Scientific Instruments, 83(1)
We review an experimental method that allows to probe the time-dependent structure of fully three-dimensional densely packed granular materials and suspensions by means of particle recognition. The method relies on submersing a granular medium in a r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aacdd611cbc8fdfbe5bb7b081b27fafe
https://doi.org/10.1063/1.3674173
https://doi.org/10.1063/1.3674173
Autor:
Frank Rietz, Ralf Stannarius
Publikováno v:
Physical review. E, Statistical, nonlinear, and soft matter physics. 85(4 Pt 1)
We report on a granular experiment that produces multiple quasiperiodic pattern solutions in a rotating flat container filled with a bidisperse mixture of grains. The observed dynamics show a pronounced spatiotemporally periodic drift of segregated p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8bea3c735545eeadabe1e7a5a9d95865
https://pubmed.ncbi.nlm.nih.gov/22680410
https://pubmed.ncbi.nlm.nih.gov/22680410
Autor:
Frank Rietz, Ralf Stannarius
Publikováno v:
Physical review letters. 108(11)
We study spontaneously forming convection in a container that is almost completely filled with a bidisperse granular mixture. The container with an aspect ratio close to 1 rotates slowly about a horizontal axis. In this geometry, single vortex rolls
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5eabad861a06a68e9217effbe59a701d
https://pubmed.ncbi.nlm.nih.gov/22540512
https://pubmed.ncbi.nlm.nih.gov/22540512
Publikováno v:
AIP Conference Proceedings.
Granulates are ubiquitous in nature and technology, but despite their great importance, their dynamics are by far less well understood than those of liquids. We demonstrate in an almost compactly filled flat (Hele‐Shaw) cell, where slow horizontal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc95950b6d8d0934fac66e02695eaeae
https://doi.org/10.1063/1.3180034
https://doi.org/10.1063/1.3180034
Autor:
Frank Rietz, Ralf Stannarius
Publikováno v:
New Journal of Physics. 14:015001
A flat box, almost completely filled with a mixture of granulate, is rotated slowly about its horizontal central axis. In this experiment, a regular vortex flow of the granular material is observed in the cell plane. These vortex structures have a su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acdbe5883a67ba389c9e3e1763382748
https://doi.org/10.1088/1367-2630/14/1/015001
https://doi.org/10.1088/1367-2630/14/1/015001