Schlüsselwörter:
granular materials, computer-simulation,molecular dynamics, cellular automata, bottom to top restructuring, rotating drums, self-organized criticality, pipe flow with interstitial fluid
Granuare Materie, Sand, Computersimulation,Molekulardynamik, Zellulare Automaten, Rotierende Trommelmischer, Selbstorganisierte Kritizitaet, Rohrfluss mit interstitiellem Fluid,
Sachgruppe der DNBAbstract
Several new models for the simulation of granular materials are investigated. The main part deals with the bottom-to-top restructuring model which was used for the analysis of the dynamic in rotating drums. New developments are a cellular automata, which is able to simulate the dissipation of kinetic energy in a realistic matter, and the continuousness-model, which reflects the influence of an intersitiell fluid on the flow of granular material through vertical pipes. Within rotating drums the origin of the radial segregation is cleared, a new effective mixing procedure is defined, and the phenomenon of self-organized criticality is investigated
Betreuer | Wolf, Dietrich E. |
Gutachter | Wolf, Dietrich E. |
Gutachter | Usadel, Klaus |
Upload: | 2000-03-03 |
URL of Theses: | http://duepublico.uni-duisburg-essen.de/servlets/DerivateServlet/Derivate-5115/inhalt.htm |