Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Ristow, Gerald"'
Autor:
Gehrer, Roman, Dumss, Stefan, Gast, Fabian, Wünschel, Willi, Schwill, Frederic, Šoša, Mateo, Zhou, Shiyang, Ristow, Gerald H., Gharagyozyan, Tatevik, Heistracher, Clemens, Grafinger, Manfred, Weigold, Matthias
Publikováno v:
In Procedia CIRP 2024 128:710-715
Autor:
Ristow, Gerald H.
The settling dynamics of spherical and elliptical particles in a viscous Newtonian fluid are investigated numerically using a finite difference technique. The terminal velocity for spherical particles is calculated for different system sizes and the
Externí odkaz:
http://arxiv.org/abs/cond-mat/0004301
Autor:
Dury, Christian M., Ristow, Gerald H.
We study the interface dynamics of a binary particle mixture in a rotating cylinder numerically. By considering only the particle motion in axial direction, it is shown that the initial dynamics can be well described by a one-dimensional diffusion pr
Externí odkaz:
http://arxiv.org/abs/cond-mat/9809336
Autor:
Ristow, Gerald H., Nakagawa, Masami
The evolution of the interface propagation in a slowly rotating half-filled horizontal cylinder is studied using MRI. Initially, the cylinder contains two axially segregated bands of small and large particles with a sharp interface. The process of th
Externí odkaz:
http://arxiv.org/abs/cond-mat/9806067
Autor:
Ristow, Gerald H.
Publikováno v:
Granular Matter 1(2), 93-99 (1998)
The dynamics and the transition to the centrifugal regime are studied analytically and numerically for particles in rotating drum. The importance of the particle-wall friction coefficient is demonstrated by studying first the motion of one non-rotati
Externí odkaz:
http://arxiv.org/abs/cond-mat/9806046
Autor:
Dury, Christian M., Ristow, Gerald H.
Using discrete element methods, we study numerically the dynamics of the size segregation process of binary particle mixtures in three-dimensional rotating drums, operated in the continuous flow regime. Particle rotations are included and we focus on
Externí odkaz:
http://arxiv.org/abs/cond-mat/9805381
Publikováno v:
Physical Review E 57, 4491-4497 (1998)
The angle of repose for the flow of granular materials in a half-filled rotating drum is studied by means of experiments and computer simulations. Particles of different material properties are used to investigate the effects of the end caps on the a
Externí odkaz:
http://arxiv.org/abs/cond-mat/9710127
Autor:
Ristow, Gerald H.
Publikováno v:
Europhysics Letters 40(6), 625-630 (1997)
The solid--fluid phase transition of a granular material shaken horizontally is investigated numerically. We find that it is a second-order phase transition and propose two order parameters, namely the averaged kinetic energy and the averaged granula
Externí odkaz:
http://arxiv.org/abs/cond-mat/9706168
An ac field, tuned exactly to resonance with the Stark ladder in an ideal tight binding lattice under strong dc bias, counteracts Wannier-Stark localization and leads to the emergence of extended Floquet states. If there is random disorder, these sta
Externí odkaz:
http://arxiv.org/abs/cond-mat/9505043
We show that depending on the disorder, a small noise added to the threshold distribution of the fuse network may or may not completely change the subsequent breakdown process. When the threshold distribution has a lower cutoff at a finite value and
Externí odkaz:
http://arxiv.org/abs/cond-mat/9310016